Good point, charlest. I forgot to mention spinner speed, amount of water used, hand pressure, etc. will all have a direct bearing on the outcome.
For myself, I try to err on the side of more speed and water with less hand pressure, only because I'm not terribly fond of sanding lines.

--------------------
Lane Carter, Strike Zone Pro Shops - Salt Lake City, Utah
Brunswick Pro Shop Staff
www.brunswickbowling.comThe opinions expressed are solely those of the writer and not of Brunswick Corporation.