I just picked up mine also so I don't know. I do know what I was told my by pro shop owner. He took a bit of the polish off his, still at 4000, just use a 4000 pad on it and he likes his a lot. I'm thinking of doing that myself. But I first want to keep working with it in box finish as I have 5 frames on it so far. But yes, mine too was going long, even with an aggressive drill, when I tried it Thursday night.
Chuck