hey guys . seeing that many of you here have lots of knowlege about cutomization of rackets . i've got a question to ask . i'm currently using a hyper hammer 6.3 midplus . i've added lead tape to the handle to counter the " hammer" function . i've also added four pieces of swingweights to 11 and 1 o'clock positions . the stick feels pretty solid now except for the string . i'm usin a pacific hybrid now and cant seem to get any power from my serve . previously when my stick was without swing weights ( head ligh balance ) . my serve and overheads were powerful and deep . now that i've added swingweight , and changed strings , i cant seem to get any power on serves and overheads . my volleys also don't feel as solid compared to the time when my stick was stock . i also wanna know how to make my grip shape rounder . i'm currently usin a wilson solution replacement grip . no overgrip . i was wondering if it was : 1. an arm which is too weak . 2.uneven balancing . (my friend's stock surge works like a charm . ) 3. strings which do not suit my game . 4.i need a head light stick . any form of help is definitel appreciated . it'll be great if i can customise my stick to my exact need and do not neet to buy a new stick . thanks in advance !