Personally, I tend to use black and I'm always so paranoid about NOT being able to put tape in the ball that I instruct my driller to open up the thumb hole quite a bit, so this may not work for you, but what I usually end up doing is use super glue on the first piece of tape that I put in the ball, then when I layer the rest of the tape, the chances of it sliding out are much slimmer. Rarely has that first piece ever needed to come out, and the 1-2 times that it has, I've had to open the thumbhole up more up anyway