One piece sticks are fragile(i broke 2 in one week :lol
anyway, i used to have a nice Tps Rubber, nice stick, nice flex
but i snapped that as well
ops:,now i use a graf wooden stick and i really enjoy
for your son, i would say depends on his shot, if he hasn't developed it to his fullest, i would say get him a nice wooden one, but if hes has an amazing shot get, and you think its worth the 100 - 200 dollar range i would say stick with the 2 piece (you can always change the blade), one piece sticks do help with your shot ( they give it an extra <>&: ) but its not worth the money, True he is only 8 years old and probably wont break because he is 8.
But if you really really really want a one piece stick, i would go with the TPS Rubber Response, I tried it, I loved it, I broke it