But I'm questioning is it really
THE proper technique? Or just a way of hitting the 1hbh?
Some high level pro's (who have much better backhands than you or I) are hardly doing it at all, are you watching the video's I'm linking to you?
Wawrinka hardly does it;
http://www.youtube.com/watch?v=zm2lXozOqno
Gasquet sometimes does it but with a bent arm;
http://www.youtube.com/watch?v=YuBRallEByc
Henin hardly does it;
http://www.youtube.com/watch?v=LdDwMj3_WMA
Laver really didn't do it at all (dead non-dominant arm);
http://www.youtube.com/watch?v=7-VeBIal8TU
Look at the backhand Gaudio hits at 0.32 - his non-dominant arm is going
forwards;
http://www.youtube.com/watch?v=bjIX-EhzEp8
...but Federer does it to a moderate degree, and Dimitrov really exaggerates it to the point where you're not sure if it's wasted energy and unnecessary complication.
My question to you is: if so many pro's are NOT doing this technique of flinging back the non-dominant arm, is it a preference thing (like straight arm/double bend forehand), or is it a stroke fundamental?
And/or is it situational? The fact that I even found SOME videos of these pro's not doing the technique in normal rallying backhands suggests it's not a stroke fundamental, like, for example, keeping the hitting arm straight through contact.
Keeping the hitting arm straight IS a 1hbh stroke fundamental, and I wouldn't be able to find
any normal rallying backhand clips where the pro's aren't doing this.
So, after this information and watching the links, what do you think of flinging back the non-dominant arm: preference or fundamental? And why?