i have no idea abt the price then but my friend is selling the thunder power to me at 80 and the raging inferno at 100.
i can't decide which one to buy so i took the thunder power to test first. luckily the grip and span is abt the same.
hmmm i would say i'm a beginner with a avg of 150+.(stroker)
currently i'm using the storm hot rod but this belongs to my friend and he wants it back.
so LL have to source for another ball.
Thanks for all your help guys!