Category Archives: Kinesiology
Of course, we are all anxious for the new year to get here and erase 2020 from our memory!
We are designating 2021 as the You Year! So, Happy You Year!
For the last few years Racquet Quest, LLC has put more emphasis on “custom racquets” and 2021 will see this emphasis extended to “you racquets”!
What exactly does “you racquets” mean? It simply means that every racquet that leaves Racquet Quest, LLC is set up for your style of play and personal specifications. Yes, even if the racquet is Off-the-Shelf and not a full custom!
Many really good things are happening next year and we are glad you are going to be with us!
We have had a “sneak peek” at some new tennis racquet models that will be arriving early in 2021! Typically, we can’t divulge a lot of the details yet but suffice it to say these are exciting models!
But let’s back up a minute and talk about new racquets that are here, or should be here, or will be here soon! The new Wilson Pro Staff series had a delivery date of September 28, 2020. They are way behind! If you are waiting for a new Pro Staff…we are sorry! Who knows what happened, but it is not good when the expected deliveries are not met!
The new Pro Staff RF 97 Autograph will change only to the Pro Staff colors of red and yellow stripes; the Pro Staff RF 97 will get a new grip pallet and butt cap setup that is intended to be easier on the hand.
The new Tecnifibre RS Series offers some interesting geometric concepts that continue their push for more player traction.
The new Head Graphene 360+ Radical Series retains the classic Radical Orange, but this one is “in your face orange”! Awesome! A cool gray shaft and grip temper this orange!
The Radical MP that we have seen has a few changes in shape and dimensions, and in fact, it is a different racquet than the past years. The head shape is more “round” by a slight amount, and the beam cross-section is different. The beam height is slightly less than the previous version, but the stiffness remains nearly the same. The shape of the “yoke” section is a little deeper and slightly wider at the junction of the head.
The new Radical has a “slicker” aerodynamic grommet system, for, no doubt, greater head speed to go with the “spin” friendly grommets!
And, the Radical Series has been scaled back to three (3) models! The Radical Pro, the Radical MP, and the Radical S. The Radical S is 102 square inches and the Pro and MP are 98 square inches.
The Head Graphene 360+Gravity has been a top seller and therefore is only getting a “cosmetic” make-over! The Hot Lava and Teal are being replaced by very interesting blue and yellow graphics! They look really good!
The Head Graphene 360+ Speed is staying the same but will add a black edition to the mix! It seems Novak likes black better than black and white so there will be a “black” in early 2021!
Don’t forget the Head Instinct “Effortless Power” series! It continues in a new color scheme, still blue and blue but in a more Head consistent pattern.
This week we will be getting the new demo racquets setup for your evaluation…if all goes well!
It is reassuring to know even in this time of uncertainty that racquet companies continue to produce great products that can, and will, help many players stay in the game!
If you have been following Racquet Quest online and with the podcast, you know we are very fond of data! In keeping with that “fondness,” we have received our newest testing device, which I have named “Questron.”
During the last week, we have spent time getting Questron set up to do the kinds of testing we think is important for the tennis player, the racquet technician, and anyone else that cares about numbers!
It will be about another week before posting any data because we are “tweaking” some connection points, cycle settings, and refining the data’s graphing.
We have over 400 strings to test; however, we will eliminate many of those strings not relevant to today’s tennis player.
Even in the “testing” phase, we are discovering interesting facts about strings that will help us put together the best setup for you!
This is the “base” Questron. Future versions of this device will incorporate the “Power Potential,” “In-Plane Stiffness,” and “Dynamic Stiffness” testing that is currently done on other equipment.
As any business knows by now, there is a new way to do business regardless of what they are selling, and tennis racquets are no exception!
For several years players have been able to buy “special” racquets from some manufacturers. These racquets were typically unique graphics. The price of these racquets was, also, usually a bit more than “retail’ products.
Now, however, Wilson is making their “Pro” series racquets available through wilson.com, only. These racquets are what the cognoscenti refer to as “pro stock” racquets.
I think it is a good idea!
Why? Because so many players wanted “special” racquets and were paying exorbitant prices for racquets that may or may not be what they thought they were buying! We know because we see them!
Buying direct is one reason we have modified our model slightly by offering to a greater extent “custom” racquets. This way, you know what you are getting, exactly! I believe this will be the case with the Wilson Pro Series as well.
I believe it will not be far that more tennis racquet companies do the “direct” thing; however, “scale” is the issue and stringing and racquet setup. Some companies don’t have the resources for that, yet, so online sellers will still have some action, I think.
If you have a racquet technician you trust, purchase the racquet “direct” but have it set up locally. I think that is a winning combination!
Let us know what you think about buying directly from the racquet brand instead of online or locally.
Normally our racquet reviews are when a racquet is brand new; however, this is a case where the updated string, RPX, from Tecnifibre is an excellent opportunity to add another review to the site!
There are some excellent reasons to review the same racquet again with different string or tension settings.
- It allows us to evaluate new strings for comparison purposes.
- It will enable the player to demo the same Racquet with a different string.
- The string can affect the overall weight to a small degree but significantly impact swing weight.
For example, this racquet with Victrex 7718 PEEK string (15.9grams installed) has a swing weight of 318. With the new Tecnifibre RPX (18.0 grams installed), the swing weight is 325. That is not huge, but it is different.
Lead tape, commonly used to increase swing weight, weighs in at 2.8 grams for 12 inches! So, slightly over 2 grams of additional string weight in the strung area contribute to the difference between these strings.
Of course, this also means that swing weight can be reduced, somewhat, by using lighter string! We weigh all of the string we test for Power Potential, so we know which string can benefit either swing weight preference.
|Racquet Model||Head Graphene 360+ Gravity MP|
|Reference Tension||55 lbs - 24.9 k|
|String||Tecnifibre RPX 16|
|Machine Used||True Tension Professional|
|Racquet Flex, RDC||59 - After stringing|
|Racquet Flex, FlexFour||54|
|Head Area, cm2||645|
|Head Area, Sq. Inch||100
|Beam Width, mm, Shaft, Center, Tip||22, 22, 22|
|In Plane Stiffness, Pounds/In||381.0|
|In Plane Stiffness, Kg/cm||68.12|
|Number of Main Strings||16|
|Number of Cross Strings||20|
|Main String Grid||7.75
|Cross String Grid||10.37|
|Density (% of head filled with string)||.784
|Average Cross String Space||.480|
|Average Main String Space||.520|
|Dynamic Tension, Kp, ERT||36|
|Dynamic Tension, Lbs/in||201.35|
|First Moment, Nm||.843|
|Swing Weight, Kg/cm2||325|
|Swing Weight, Ounces||11.46|
|Swing Weight Calculated||365.7|
|Head Points||1.89 (negative = head heavy)|
|Head Weight, %||49.1%|
|Center of Percussion||20.7|
|Dwell Time, ms, No Swing||8.74|
|Effective Stiffness - lbs||27.9|
|K, Lb/In (SBS) RDC||169.87|
|Total Weight Check||322|
|Total Weight Check||321.6|