@engineer,
Quote:THE ONE HANDED BACKHAND IS THE GOLD STANDARD OF BACKHANDS!!! Ok, got that off my chest.
That particular kind of one hander which both Sampras and Federer hit became outmoded somewhere towards the final third of Sampras' career and was the main reason Sampras was not able to compete any better than he did for those last three or four years.
The two hander at least has some degree of leverage in that you're trading a small amount of wrist motion for a larger amount of racquet head motion but the one hander you're talking about has no leverage at all; you're bringing the arm to shoulder height to produce topspin and you're needing to move your arm one foot to move the racquet head one foot.
That's absolutely one to one. It amounts to the same thing as lifting a stone instead of using a lever to lift it, or arm-punching in boxing.
You can always tell the arm puncher in a professional prize fight; he's the guy being carried out in a wheel barrow.
Sampras and Federer can generate power on backhands from the service line and possibly from five or six feet back from the service line, but they cannot generate power from the baseline or from behind the baseline, and the guys with the two handers can. At that level of tennis, that is too much to give away.