So far I have had only one ball drilled by Buddies, but I can not say enough good things about them. I sent them my stats, along with a ball with my Turbo Switch Grip installed. They called me to discuss my stats before drilling. They drilled the new ball I ordered perfectly.
The whole process went quickly, 4-5 days to ship them my ball (they pay & provide the shipping label), 2-3 days to drill the new ball, and 4-5 days to get both balls shipped together back to me. On my next ball purchase, I will be going back to Buddies.