I just want to clarify that i am displeased with this ball at 4000, just looking to get the most out of it. The reason i wanted to use sandpaper rather than a a-pad is to see if their is a difference. I have read in different posts that most people feel that there is a difference, but for me there wasn't a real big difference atleast with this ball. I am going to take it back to 4000 abralon and leave it there, this ball is drilled rico, go figure, so with this drilling i have noticed a difference between pearl balls and solids. The pearl seems to store more energy with more backend. The dynamo is already a smooth arching ball so this drilling doesn't really maximize this ball, so if i want it to be more of a oil ball i would just drill another one and stack it. So as far as the 814 score goes, i just carried really well, because that is what it really comes down to in the end. Just because i shoot a good score with a ball doesn't mean i won't tweek the cover of that ball. I appreciate all the comments i got on this subject, maybe it will help someone in the future, because there is some question as to the real oob surface of this ball.