I often use a Dremel Multi-Max vibrating tool as a sander, particularly on the inside of the canoe. The triangular base plate that Dremel provides is aluminum backed , rubber, with a velcro face. This plate is too big to fit in-between ribs in a typical w/c canoe, but if one cracked rib has been removed for replacement and I'm sanding in-between two ribs, that aluminum plate can quickly cut into the sides of the adjacent ribs, causing damage if I'm careless. I have found that I can cut wood blocks of all sizes to use in place of that aluminum plate, and wood does not cut into the sides of ribs. Softwood pine is too soft, so I have to use a dense, hard, wood. But there is a problem which happens with both the aluminum plate and the wood substitutes: if the sandpaper is held on with velcro I find that the fuzzy back quickly separates from the sandpaper, so I don't get long use from the sandpaper. I have tried using glue-backed sandpaper, which works until the glue gets warm, which happens quickly, and the paper peels off. Is there anybody out there who has overcome one or both of these sandpaper problems and will share your solution with me? It would save me a lot of time and a lot of spoiled sandpaper. Thanks. Tom McCloud