Thanks guys...
(Sorry I missed your earlier thread Bill - I should have searched first before blurting out questions in my enthusiasm.)
N8: I understand that not all wet/dry papers and films are created equal but don't know how to properly choose one brand/type over another. I generally use NORTON Tufbak Durite T421 600-A and 3M Imperial Wetordry 1200. Are these OK or would you recommend something different???