Many people say that the rarity of the 1hbh in today's tennis is due to the fact that kids are starting earlier and earlier. It seems that kids need to be playing by around 8 years old if they wanna make it big. The problem is that it is very difficult to teach a 1hbh to a kid this young. Most 8 year olds are not physically strong enough to hit a stable 1hbh. How would you go about this? If you wanted to teach a talented youngster a 1hbh, how would you go about it? Teach him a 2-hander first and have him switch as he gets older? Teach slice first and add a topspin 1hbh later on? Or start teaching a topspin shot from the beginning? Discuss.