http://www.youtube.com/watch?v=CHS23N3gDBQ&feature=player_detailpage#t=520s Check out Tsonga in the following link against Klizan. I had to do a double take - was it really Tsonga playing in that clip? He hit at least two rally backhands as a topspin 1hbh. Not one handed slice. Not a last-ditch desperation passing shot attempt when stretched out way too wide (I can understand this). But rally backhands where he has ample time to set up his 2hbh. How can Tsonga even be thinking about doing this? It takes billions upon billions of repetitions of a stroke to get it to a pro level, and it takes learning that stroke from the age of, oh I dunno, TWO years old. If Tsonga really wants to have a 1hbh, he needs to invent a time machine and go back to when he was two years old and hit thousands of 1hbh's every day for 25 years, and then, maybe then, he'd a have a 1hbh that he could hit to pro standard. It really baffles me that a mature touring professional can mess around with his technique like this, and it certainly gives fuel to those who claim that Tsonga spends all his time clowning around and never really having the belief to win anything big. Its like: "oh I can't win this match anyway (even though I'm playing Klizan of all people), so may as well mess about hitting 1hbh's to entertain the crowd." Do you see Nadal or anyone else on tour learning new techniques? Of course not, because in tennis your game is locked into place by the time you're 15 - after that, any time spent trying to acquire new techniques/skills is wasted because you'd need to spend 20 years and billions of hours getting those new techniques/skills up to pro standard. By that time you'll have long retired.