I use sandpaper regularly. Why should the techniques change? Having enough different grits on hand, changing directions, changing speeds, different hand pressure, amount of water used, etc. It does take some practice, but it's done all the time. You can hold a piece of paper against a scotch brite if that helps you even things out.
All I can say is don't be afraid to practice and experiment. Maybe start by not going below 400 grit so your lines aren't as deep? If you do go below 400 make sure you're using a higher speed so it doesn't "cut" as much.
Somehow before the advent of abralon and scotch brite we managed to survive.
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Lane Carter, Strike Zone Pro Shops - Salt Lake City, Utah
Brunswick Amateur Staff
Edited on 9/12/2008 6:50 PM