Blog Archives

Head Extreme MP L 2024

The new Head Extreme MP L is poised to be the racquet that can do it all! I mentioned earlier that this latest version of the Extreme may be my favorite!

Head Extreme MP L 2024

In a word, two words, “perfect base!”

The Head Extreme MP L can be turned into almost any racquet you want in terms of weight and swing weight but the string spacing is “fixed” and represents to me the defining characteristic of the racquet.

The open string pattern will allow for easy ball control and string bed stiffness variations.

Take a look at the data then take out the demo and tell us what you think.
ManufacturerHead
Racquet ModelHead Extreme MP L 2024
Reference Tension56
String
IsoSpeed Control +
Machine UsedTrue Tension Pro
Static
String Bed Stiffness - RDC42
String Bed Stiffness -FlexFour55.0
Strig Bed Stiffness - SBS45.6
String Bed Stiffness - ERT31Kg/Cm^
Racquet Flex, RDC64
Racquet Flex, FlexFour45.6
Racquet - In Plane Stiffness475.6
Weight, Grams305
Weight, Ounces10.76
Balance, mm333
Balance, Inch13.11
Length, Cm68.5
Length, Inch26.968
Head Width9.67
Head Length13.08
Head Area, cm2640.6
Head Area, Sq. Inch99.3
Beam Height @ Grip, mm22.5
Beam Height @ Mid, mm26.3
Beam Height @ Tip23.3
Beam Width @ Grip, mm17.5
Beam Width @ Throat, mm14.8
Beam Width @ Mid, mm13.2
Beam Width @ Tip, mm14.5
Number of Main Strings16
Number of Cross Strings19
Ratio.622
Main String Grid Inch/mm7.70/195.6mm
Cross String Grid Inch/mm10.22/259.6
Density (% of head filled with string).793
Average Cross String Space.538
Average Main String Space.481
Dynamic
Dynamic Tension, Kp, ERT31
Dynamic Tension, Lbs/in173.4
First Moment, Nm.787
Polar Moment318
Torsional Stability16
Swing Weight, Kg/cm2302
Swing Weight, Ounces10.65
Swing Weight Calculated338.2
Power, RDC49
Control, RDC50
Manueverability, RDC85
Power, Calculated 1919.0
Head Points2.99
Head Weight, %48.6%
Center of Percussion20.7
Dwell Time, ms7.22
Efective Stiffness - lbs25.4
K, Lb/In134.6
Recoil Weight1328.7
Twist Weight213.4
End Weight 117.2
Tip Weight 187.6
9 O'Clock86.7
3 O'Clock88.1
Butt End130.3
COF, Main.351
COF, Cross.449

 

 

Leaded or Un-Leaded?

This used to be a decision you made when putting gasoline in your car, but, not so much anymore.  It is, however, a decision you make when it comes to racquet performance.

For this discussion “lead” means “weight”.  There are, of course, other types of weight.

Racquet performance can be enhanced with the proper placement and amount of lead used.  Conversely, racquet performance can be frustrated when lead is used improperly.

Lead Tape Placement

Lead Tape Placement

I imagine every tennis player has experimented with lead.  This is sometimes encouraged by the racquet manufacturers by marking racquets with “place lead here” areas.  This may be OK for gross adjustments but you want the racquet to perform for you, and you alone!

You can continue to experiment with lead, and placement, or you can seek out a racquet technician that has been trained in the best location and amount of lead for your game and has the diagnostic equipment to achieve the goal.

When I “customize” and “match”  racquets it requires a few iterations based on the consistency of the racquets.  For example, out of six (6) racquets there may be six (6) different specifications. This is due to manufacturing tolerances and that is OK, but, at the point of manufacture the easiest method of “matching” is adding weight to the rear end of the racquet.  That is why “balance” is still used instead of the more definitive “swing weight”.

Typically all racquets will be matched to the “heaviest” racquet primarily because removing weight from a racquet is not cost effective (meaning it is really difficult).

When six (6) racquets are matched you may see slightly different locations and amounts of lead.  This is common and should be expected.  With the proper equipment and expertise every racquet should be within one (1) unit of each other.  This is the typical tolerance of diagnostic equipment.  In real life it is quite satisfactory to have the racquets within 2% of each other.  I prefer, however, to have each racquet return the exact number.

So, if you have experimented with lead without success please don’t give up.  The proper application of lead can really make a positive impact on how your racquet will perform.

If you have any questions about customization please let me know, and, let me know if you prefer leaded or un-leaded!

Where did my Swing Weight Go?

It seems like I am talking about where things have gone a lot recently but it is important, I think, to recognize what differences disappearing things make!

The mention of Swing Weight (inertia) causes many reactions from “who cares” to it “is the most important thing about my racquet”!  So to be clear swing weight is the most important dynamic characteristic of a racquet while leading up to contact with the ball.

OK, that is out of the way but what contributes to swing weight?  The weight distribution of a racquet determines swing weight and it can be changed (increased) by adding weight strategically on the racquet.  The best possible use of added weight occurs around the mid point of the racquet face.  This is sort of 3 and 9 o’clock.  Obviously adding weight to the very tip of the racquet will add more swing weight with less overall weight but this location does not have the benefit of added torsional stability.

Here is the genesis of this post:  I received four (4) racquets from a manufacturer to put together for a client.  This includes cutting to length installing pallets, butt cap, grip, and any other customization that is required.  Before I do anything I take data from each racquet in the “raw” form.

In this particular case  there was a slight variation in swing weight.  That is not an issue but what happens next is.  I will be very brief.

Three (3) of the four (4) racquets had a Poly/Gut (1.27mm and 1.30mm) hybrid format and the third had a all polyester format.  The all polyester format was 1.11mm!  Very thin string, hence, disappearing weight.  So, you know what is coming now…the swing weight of this racquet was much lower than the others.

So, you can have several racquets in your bag but unless they are strung with very similar string the swing weight may be different.  Most players can feel the difference in a few units so it helps to know “where did my swing weight go?”

I always match the racquets.  If the player switches to a different string modify the swing weight suit it!

Racquet Technician Software

Well, it only took a little over two (2) years but the new RacquetRecord™ is now available for users of the MacIntosh and Windows operating system! I made the move to Apple a few years ago and appreciate the “usefulness” of the system so it took a while to get the PC version to market.

With RacquetRecord™ I tried to continue with that “ease of use” functionality.

RacquetRecord™ includes dozens of fields that are designed especially for the serious racquet technician, including client and technical racquet data.  Work Orders, Worksheets, Invoices, and racquet labels are easily printed.

RacquetRecord™ is not a “financial” application but includes totals for each racquet strung and “total” reports for year end records.

The cost of RacquetRecord™ is $79.00 for a version without data and $94.00 for a version that includes some product data, and is downloaded to your computer.  You can take advantage of a ten (10) day trial.  When you purchase RacquetRecord™ a serial number will be sent to you.

Additional functions have been added so the homepage of your version may not look exactly like the image above.

I have kept the price as low as possible so every serious racquet technician can begin to realize perfect organization of the stringing business.