The question is not "can it be done" of course it can. What is preferable is the question. I nor any reasonable person, has a problem with drilling an x-hole in a ball to make it legal. But when the ball has a cg going in the wrong direction over 1/2 ", it makes a real difference in the size hole necessary. Compounding matters is the very thin coverstock shell on today's balls, and the "fluff" surrounding the core has very little weight, causing you to have to drill into the core to get any significant weight out, and the way today's balls flare limits the places you can safely locate that big hole.
I would rather change as little as possible the dynamics of a core that someone much smarter than me designed.
What is necessary is for ball companies to start marking the boxes cg left or cg right if the cg is out of line more than say, 1/2", or for them to get closer to getting them all in line. They already mark the pin placement, but it took them 10 years to start doing that.
Edited on 3/9/2007 3:46 PM