Sell it to someone who doesn't use their thumb... that would be perfect TW for just drilling two finger holes in a ball.
You're going to end up with a bunch of bottom weight which is thought to make the ball "rollier". Hopefully it doesn't take away any of that backend you're looking for. It shouldn't, seeing as backend is mostly a result of coverstock, surface prep, layout, hand and lane condition.
Just my $.02
--------------------
"A word to the wise ain't necessary -- it's the stupid ones that need the advice." Bill Cosby
"Never argue with an idiot. They bring you down to their level and beat you with experience."