Have a Question for Me?

[johnyandell]

Looks pretty explosive! Got a quick time of that?

[gzhpcu]

A video of a forehand I was playing in Dubai. Could you comment please John?
https://www.youtube.com/watch?v=vYxt...ature=youtu.be

[johnyandell]

No idea! Wish I did. Not 3000rpm more than likely. Over 2000rpm with a wood racket and a mild sw western grip? Good question.

[stotty]

Any idea what Borg's rpm rate was on his forehand? I just wondered ho it would compare to the players of today.

[johnyandell]

That's excellent. So don't get thrown off by the new one coming out on closed stance in the pros!

[jdcremin]

Yes I agree with the natural bend on the serve as relaxation. But the key to power is still the rotation from the racket drop up and the continuation after contact.

Agreed. I also wanted tell you that the articles on back foot alignment and open stance hitting on the 1hbh changed my life - it was the one big thing that I was missing. Best tennis site on the web.

[johnyandell]

Yes I agree with the natural bend on the serve as relaxation. But the key to power is still the rotation from the racket drop up and the continuation after contact.

[jdcremin]

JD,

Think it's different on all the strokes. The elbow on the straight arm forhand is straight well before and after--but the wrist is usually not in line.

On the serve, the extension occurs but is less important than the rotation.

On the backhands both one and two the arm positions are set up up well before contact and don't typically change much at and after the hit.

Look around in the high speed archive and see what you see.

John Yandell

Yeah, I quickly realized I was wrong about he groundstrokes but still think I'm right about the serve. I'm just talking about why the arm bends after contact - that it's simply the natural movement of a relaxed arm after it has been thrown out into full extension.

[johnyandell]

Not disdain so much as limited mental hard drive capacity to address all possible issues. We are going to be trying to understand the basic actions of poly and poly with gut. But the micro fine differences (real or imagined) of all the possible combinations are beyond me and possibly beyond current video technology to really understand. We'll leave that to the instrument called the human hand.

[jimlosaltos]

Ha!

Jim,

You give me far too much credit for knowing such things--and possibly for caring!

Luckily we have experts in the Forum who can probably answer your questions. Post the same questions for Geoff Williams and see what you get!

That's amusing. I know you've expressed disdain for tech Qs before.

I tried Geoff. best/ jim

[johnyandell]

JD,

Think it's different on all the strokes. The elbow on the straight arm forhand is straight well before and after--but the wrist is usually not in line.

On the serve, the extension occurs but is less important than the rotation.

On the backhands both one and two the arm positions are set up up well before contact and don't typically change much at and after the hit.

Look around in the high speed archive and see what you see.

John Yandell

[jdcremin]

The arm bend after contact on serve

This has probably been said before but the arm bend seems to be similar to what happens after a whip cracks. The whip tip is rotated into the "crack" and at this tiny fraction of a second, the whip end is a straight line (arm at contact). After the crack, the whip "breaks" forward - there is no other possible movement. The bend of the elbow is the result of relaxation. Further, the whip cracks at full extension of the cord (the distal portion of the cord) and I think this full extension is the goal of the service motion and maybe all hard hit groundstrokes.

[johnyandell]

Jim,

You give me far too much credit for knowing such things--and possibly for caring!

Luckily we have experts in the Forum who can probably answer your questions. Post the same questions for Geoff Williams and see what you get!

[jimlosaltos]

Stringing Open Pattern Rackets

I don't see many questions about equipment here, but I'll throw this bottle in the ocean and see what comes back.

Question about stringing these new open frame rackets. I tried the Wilson 95S and found at low tension, the strings were constantly out of place, meaning they did not provide the snap-back that is supposedly the raison d'être of co-poly strings. Yet at higher tension, the extra spin disappeared (for me at least) on most, but not all shots. {used Lux 4g at 49/ and 56 lbs mains).

I noticed Dimitrov and Nishikori switched to the Wilson 95S and from photos, it looks like they are using hybrid stringing. What tension and strings work best in these type of rackets? What are the trade-offs? Any idea how Grigor is stringing?

The whole idea is based on Cross and Lindsey; supposedly with less friction caused by fewer crosses, the strings will snap back even better, yet the strings appear not to snap back.

Confused in Los Altos <g>

[tntenniswhiz]

Forum Cheerleader???

I may have to pull out my pom poms(no I don't really have any, and felt the need to say that after reading DBudge article on Tilden) and do some cheering for the forums!!