when i redrill the ball, i always remember that the ball is alr used b4 and the coverstock is not fully there. and + everytime when drilling inevitably we may take away some parts of the heavy core. as much as we changed the layout into something better, i hav to take into account not everyting will work out as well as last time, since the weight imbalances are not as good as preferred and that the weight probably has decreased, affecting pin carry. also, coverstock is not as good as out of box alr.

press on ppl.