So my son just turned 6, he is about 4 foot tall and plays tennis with me every day. Right now we are using the orange balls and he plays with a 23 inch racket. Before I had him play once in awhile with a 25 inch racket just to check but every time he was clear he liked the smaller better. That is until today, he insisted to try my new 'Nadal' 27 inch racket. Way too big of course but I noticed he actually swings with that racket as opposed to the 23 which has hardly anything to swing with as it is mostly racket head. The APD is strung with poly so after a few hits I had him hit a little bit more with a slightly HH Head and a HL Volkl strung with gut and he was quite enthusiastic. And I was impressed, amazing to see such a little guy swing with such a big racket. So now it seems there is no more road back, he has got to have a larger racket. So there are 25, 26 and the full size rackets. I have heard there are coaches who have the opinion you should just give them the 27 so they learn from young age what they are going to use their whole life and then there is the other extreme who wants 6 year old kids to play with a 21 inch 'Spongebob' rackets and hit red balls. So what are your opinions and perhaps your experiences on racket selection for juniors? By the way feeding orange balls with an APD strung with polyester strings adds a whole new dimension to the idea of hitting with low power.