Agassi did hit the ball very hard when he wanted to, but he didn't quite have the destructive power of Federer's forehand on any wing. Also...this is one case where I actually agree with parts of what Breakpoint is saying ... (the world is going to end now...I know it) and that is the part about the visible difference in racquet-head speed between Fed and Agassi. Even though the difference in power is not that great I, like BP, think that the additional RHS is mostly rewarded by more spin on the average Fed shot when compared to AA. I've very rarely seen AA mishit, and can't really remember a totally framed shot...but I'm sure there were some...it is unavoidable when on defense. I distinctly remember Sampras framing balls with the backhand though even on some pretty "normal" rally shots...probably not as many as Fed, but then again he spent a LOT less time on the baseline when compared to Fed as well.