Ball was great for probably 75 games and lately I've stopped using it since it lacks the power.  I've messed around with other new balls with similar performance and the power difference is huge.

I would estimate that it lost around 15 boards of play, and doesn't move early or at all on the backend.  I cleaned it almost everytime with powerhouse energizer after each set of 3 and usually only after I used it for almost 2 games.  Lane conditions varied, but usually heavy oil.

I'm new to the resurfacing game, but I just got a ball spinner and multiple grits of siaair pads for sanding.

Questions I have are:

Would resurfacing the ball likely bring back some performance?

The hammer website says the finish is "FACTORY FINISH 800/1000/2000/2000 Abralon®", is it recommended to follow those patters for resurfacing the ball?  Or is there another pattern recommended for resurfacing?

Should I sand dry or wet?

Basically looking for any opinions on how you might handle it.

Try to always wet sand with any abrasive, mostly for safety, but also for consistency.

Resurfacing will restore some percentage of performance. How much, is impossible to say.

See the video on this page, as a partial clue to the situation:
http://www.ballreviews.com/dv8/500-siaairafter-30-games-t294088.0.html;msg2391223;topicseen#new

I'd refresh any dull surface every 10 - 25 games, maybe sooner as needs be, or as indicated by that video.

Oil extraction after 75 games is a safe bet. 50 games is better margin.

Surface and oil absorption are 2 main factors involved with ball reaction.

Soak it in hot water for 30 minutes. Then drain the water and wipe the ball off with some paper towels. Soak it again for another 30. Keep doing that until no more oil comes out. Get rid of the airator.

Ive never had any problem with my arson....over 100 games and still hooks