(Rhythm @ Jan. 16 2007,21:46) Hey Tom, I've only done this once and temp forgot exactly which paper I started with on the inner panels. Because I said earlier in this post to start with an 800 grit. The correct paper to start with and what I used was a 220 adhesive backing sandpaper applied to my orbital air sander. Then finishing it off with hand wet sanding using 800, 1000 to 2000 emery grit paper. (sand in a horizontal back and forth motion). You can use vibrator type sander purchased from Lowes,Sear or Home Depot if you do not have an air compressor for an orbital sander.