Results 4,506 to 4,522 of 6645
02-14-2011, 08:55 PM #4506
The T1 I have is .5-.8g heavier but 1-2mm more headlight than my TPro spec wise.
The TPro swings faster than the T1 for sure, even though my T1 is unstrung. So it is not the T1 for sure.
02-14-2011, 10:23 PM #4507
02-14-2011, 10:55 PM #4508
02-15-2011, 12:10 AM #4509
Question for panda, howcome there's only serial numbers on the Precision rackets only and not the Upro and Tpro? Just curious.
02-15-2011, 12:18 AM #4510
02-15-2011, 04:48 AM #4511
02-15-2011, 08:20 AM #4512
The original grips on all Panda Power Rackets = ~7-9g.
Panda did not mention towel grips because Panda doesn't use them and there's far too much disparity.
For instance, Panda has seen a towel grip weigh almost 30g! How?
1) The racket was gripped loosely with a very big butt
2) Gripped nearly half way up the shaft
3) Was used a lot so a bunch of sweat set in and dried with the grip powder.
Last edited by DinkAlot; 02-15-2011 at 08:24 AM.
02-15-2011, 08:26 AM #4513
I might be soundling like a broken record with this, but I still fail to see how adding overgrips etc will significantly alter the playing characteristic of the racquet. sure, you changed the bp, but thats just a pseudo technical stat. you havent changed the moment of inertia, and thats the physical property that will affect how the swing feels.
02-15-2011, 08:42 AM #4514
Changing the BP by a few millimeters is not a big deal but changing it by 5 to 10mm or more can.
Also, by changing the BP, usually the weight is going to go up or down, one way or the other. Not a big deal if you are swapping grips, but if adding on, can be significant.
Not just the BP and weight of the racket, the grip size is affected too. Panda is not comfortable playing with anything bigger than G4 anymore whereas in the past he could not play with anything smaller than a G2.
Finally, this is a good example of why raw numbers don't always work. You need to factor the human side into it. That's why there are so many rackets, racket styles, colors preferences to go along with players and their play style.
If grips don't affect you, that's great, one less variable.
02-15-2011, 09:32 AM #4515
This is why lead tape IS effective at changing the BPT as when you hold the grip the moment is changed.
02-15-2011, 10:39 AM #4516
Although most of those changes are minor.
[M = F x s with M=Momentum, s the length of the lever and F the created force. Changing the BP will also change s, and while F will be influenced (being the force created by the inertia of the racket), it will have a lesser effect than the change of s. This is only the simplified equation used for constant forces, but as I said, I'm too lazy and tired to go into detail. Also, I have ~2 weeks left until my mechanics exam where this is gonna be a subject, meaning I haven't studied for it yet ]
02-15-2011, 12:25 PM #4517
As with all things in life, the answer lies somewhere in between.
A y change in handle weight may not be as significant as a y change in racket head weight, but it can still change the way it swings, because the handle and hand is not the fulcrum in the swing. Instead the fulcrum lies somewhere behind the shoulder and body.
02-15-2011, 12:59 PM #4518
Thanks for agreeing - adding weight at the handle WILL change the swing characteristics of a racket, as it changes the weight, its distribution and thus the BP. All 3 influence the intertia of the racket which creates the momentum you notice when starting or ending a swing. Also influenced is the impulse of the racket (=>smash power, which is why hard hitters tend to prefer high BPs).
But seriously, you dont wanna open that can of worms if you're not very interesting in physics/engineering as its getting more and more complicated the more realistic and accurate you wanna calculate those things. Just take it for granted that adding weight at the bottom and top will both change racket characteristics
02-15-2011, 01:02 PM #4519
02-15-2011, 01:18 PM #4520
Whilst the centre of the swing maybe extended to your shoulder/chest or whatever the biggest impartation of power is created by the pronation or supination of the wrist, of which the addition of extra weight in the handle has minimum/nil effect.
Yes the Balance point is clearly affected by adding grips, as you measured balance point from somewhere in the shaft, but the effective balance from Hand to head is minimally affected.
It is complicated & there are more things to consider than a simple measurement, but people should remember that by changing a dry weight racket of 290mm to 280mm by adding weight to the handle won't make the racket play like a dry weight 280mm BPT racket.
02-15-2011, 01:29 PM #4521
02-15-2011, 01:42 PM #4522
Assumption: BP change changes swing feel.
Corollary: rings change swing feel.
Everyone that accepts that grips change racket swing MUST accept that the same effect can be acheived by wearing a ring or two on your racket hand, since you're adding the same weight to the same position in your lever.
Now, I will be very suspicious if anyone ever claims that switching their wedding band to the other hand was just the trick to make the racket more head light.
Last edited by amleto; 02-15-2011 at 01:51 PM.
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