Category Archives: PEEK
The Elephant in the Room!
I suspect we all have heard that expression!
It means there is something that everyone tries to ignore, but it is too large to do so!
I recently read an article in Racquet Sports Industries authored by Georgetta L. Morque. The title is “Tackling Tennis Elbow.” Tennis elbow is an important topic and deserves much attention. Georgetta is writing about ways to mitigate tennis elbow after the fact.
Let’s try to prevent tennis elbow, so it does not need to be treated!
When we say stiff, it means a string with less than 4% elongation at 60 pounds which is our testing parameter. Most strings, and for this discussion, strings exhibiting that property will be monofilament PET-based (polyester).
Fully understanding this required a lot of testing, both lab and play, for many playing styles and racquets. To make a long story short, as a racquet technologies business, we decided not to promote polyester strings for most players. That sounds silly, but why take a chance when you don’t have to!
Our success is based on helping you, the player, perform the best you can, so it does not make sense to promote something contrary to that philosophy. Probably 75% of our clients have come to us for something different, so we have a “head start.”
So why do so many players use it or want to use it?
We believe it is because they have not been exposed to alternative string materials. Some outstanding players at the pro level use it, so it must be good, and it is for about 10-11 games. Of course, manufacturers and marketers of polyester string stand to make a nice profit! It is in their best interest to promote products by adding some terminology and material to make the string less stiff.
A polyester string is deficient in power and needs to be walloped, and the harder it is hit, the stiffer it becomes, which is the problem. Developing bodies can’t tolerate that level of impact for long.
Head Boom Team L 2022
Like the Head Boom Team 2022, the Head Team L 2022 has been much anticipated!
Finally, a 107 square inch head without the ridiculous thick beam and ultra-lightweight, a legitimate “tweener”!
The Boom Team L has the highest power level assigned to recent Head racquets coming in at “900”, compared to the Boom Team at 800 and the Boom Pro at 400. If a power racquet is what you are looking for, this may be a good choice!
The Boom Team L is a slightly longer racquet at 27.35 inches. This increase in length increases the swing weight without adding weight. You can think of swing weight as “leverage.”
The Boom Team L incorporates all the newest materials and design chops of the viral Boom Pro and Boom MP.
The specifications will give you a better idea of where this racquet may fit your game.
Manufacturer | Head |
---|---|
Racquet Model | Head Boom Team L 2022 |
Reference Tension | 56 lbs - 25.4 kg |
String | Head Reflex MLT 17 |
Machine Used | True Tension Professional |
ASPS, RDC | 45.0 |
ASPS, FlexFour | 55.0 |
Racquet Flex, RDC | 63 - After stringing |
Racquet Flex, FlexFour | 46.0 |
Racquet - In Plane Stiffness | 339.8 lbs/Inch |
Weight, Grams | 290 |
Weight, Ounces | 10.23 |
Balance, mm | 353 |
Balance, Inch | 13.90 |
Length, Cm | 69.5 |
Length, Inch | 27.362 |
Head Width | 10.15 |
Head Length | 13.25 |
Head Area, cm2 | 679.5 |
Head Area, Sq. Inch | 105.6 |
Number of Main Strings | 16 |
Number of Cross Strings | 19 |
Ratio Cross/Mains | .643 |
Main String Grid | 7.90 |
Cross String Grid | 10.56 |
Density (% of head filled with string) | .792 |
Average Cross String Space | .556 |
Average Main String Space | .494 |
Dynamic Tension, Kp, ERT | 31 |
Dynamic Tension, Lbs/in | 173.39 |
First Moment, Nm | .805 |
Polar Moment | 331 |
Torsional Stability | 18 |
Swing Weight, Kg/cm2 | 313 |
Swing Weight, Ounces | 11.04 |
Swing Weight Calculated | 361.4 |
Power, RDC | 53 |
Control, RDC | 48 |
Manueverability, RDC | 78 |
Power, Calculated | 2139.2 |
Head Points | -1.73 |
Head Weight, % | 50.8% |
Center of Percussion | 20.7 |
Dwell Time, ms | 9.48 |
Efective Stiffness - lbs | 26.3 |
K, Lb/In | 144.23 |
Recoil Weight | 129.71 |
Twist Weight | 221.11 |
End Weight | 97.7 |
Tip Weight | 192.3 |
9 O'Clock | 93.0 |
3 O'Clock | 92.8 |
Butt Cap | 103.8 |
Tecnifibre TF40 305/16M
Tecnifibre has introduced the new TF40 series in a very much appreciated 16 x 19 string pattern! The 18 x 20 pattern is a good one but we think it may intimidate some potential buyers.
This initial review is for the 305 series, with 305 being the gram weight of the unstrung racquet, in case you didn’t know!
As with all the Tecnifibre racquets we have been in contact with this new one looks to be very well done with some subtle details that are interesting.
One is the textured decal on the “Tecnifibre” side of the shaft. It is obvious to the touch and we think it adds to the overall aesthetic of the racquet. Another one is the slightly asymmetrical terminus of the shaft at the grip top. It is barely noticeable but I like it!
One of the additions to the series is the “Foam Inside” component. Some players really like the “feel” of foam-filled racquets and this one is filled to the brim! Since it is filled with foam Tecnifibre does not see the need for a “trap door” on the butt cap, so if any work needs to be done back there the butt cap needs to come off. I don’t think there will be much needed so the solid butt cap eliminates the potential for “buzzing” which has plagued some racquet models.
The TF40 305 is a thin beam, 22mm all the way from the grip top to the very tip of the racquet. with a box shaft and an elliptical head cross-section.

Foam Inside

Tecnifibre TF40 305
Manufacturer | Tecnifibre |
---|---|
Racquet Model | Tecnifibre TF40 305/16M |
Reference Tension | 55 lbs - 24.9 kg |
String | Ashaway MonoGut ZX Pro |
Machine Used | True Tension Professional |
ASPS, RDC | 55.0 |
ASPS, FlexFour | 65.0 |
Racquet Flex, RDC | 64 - After stringing |
Racquet Flex, FlexFour | 54.0 |
Racquet - In Plane Stiffness | 378.2 lbs/Inch |
Weight, Grams | 328 |
Weight, Ounces | 11.57 |
Balance, mm | 330 |
Balance, Inch | 12.99 |
Length, Cm | 68.6 |
Length, Inch | 27.008 |
Head Width | 9.59 |
Head Length | 12.82 |
Head Area, cm2 | 622.9 |
Head Area, Sq. Inch | 96.5 |
Number of Main Strings | 16 |
Number of Cross Strings | 19 |
Ratio Cross/Mains | .630 |
Main String Grid | 7.125 |
Cross String Grid | 9.75 |
Density (% of head filled with string) | .669 |
Average Cross String Space | .496 |
Average Main String Space | .429 |
Dynamic Tension, Kp, ERT | 35 |
Dynamic Tension, Lbs/in | 195.76 |
First Moment, Nm | .837 |
Polar Moment | 334 |
Torsional Stability | 14 |
Swing Weight, Kg/cm2 | 320 |
Swing Weight, Ounces | 11.29 |
Swing Weight Calculated | 357.2 |
Power, RDC | 48 |
Control, RDC | 53 |
Manueverability, RDC | 73 |
Power, Calculated | 1997.1 |
Head Points | 4.09 |
Head Weight, % | 48.1% |
Center of Percussion | 20.6 |
Dwell Time, ms | 8.58 |
Efective Stiffness - lbs | 29.6 |
K, Lb/In | 195.76 |
Recoil Weight | 146.89 |
Twist Weight | 228.20 |
End Weight | 128.8 |
Tip Weight | 199.2 |
9 O'Clock | 99.1 |
3 O'Clock | 99.2 |
Butt Cap | 128.9 |
Do You Need Something Special – Update
Happy New Year!
We have begun to receive additional full custom racquets and components so this update will let you know what is available now.

Full Custom Racquet Components
For 2022 we have added:
Head Prestige Pro (Auxetic) 98, Thin beam: 21, 20, 20mm, String Pattern: 18×20
Head Boom Pro (Auxetic) 98, Thin beam: 22mm, String Pattern: 16×19
Head Boom MP (Auxetic) 100, Thinish beam: 21, 24, 23.5mm, String Pattern: 16×19
Head Extreme Tour (big picture above) 98, Thin beam: 21, 23, 22mm, String Pattern: 16×19
Head Extreme MP (360+) 100, Thinish beam: 23, 26, 21mm, String Pattern: 16×19
Head Gravity Pro (hot lava/teal)(360+) 100, Thin beam: 20mm, String Pattern: 18×20
*Head Prestige Mid (Graphene Touch), 93, Thin beam: 20mm, String Pattern: 16×19
Head Calfskin Leather Grip
- Boom
These are limited in quantity and require complete customization and assembly to create a full custom racquet for you. If you are interested please let us know so we can begin the specification conversation. We have designed an “order” format however it does not allow for the conversation necessary to create your racquet, so…
Use the “Easy Order” tab to get started.
*One Remaining
Do You Need Something Special?

Full Custom Racquet Components
We have a few “full custom” racquets remaining and when these are gone there will not be any more until later in 2022!
So, if you are interested in a “special” racquet for yourself or a tennis player you like, now is the time!
We have Head Extreme Tour, Head Extreme MP, Gravity Pro, and Head Speed MP in very limited numbers. These racquets can be configured in lengths up to 27.75 inches, in any grip size from 1/4 to 5/8 ( 2 to 5), and any weight and swing weight. Either leather or synthetic grips are available.
Of course, custom stringing can be added. All orders must be received by December 13th if you need your full custom racquet for a gift.
Please use the Easy Order tab on this site if you have any questions or want to place your order. You may text us at 407.491.4755