no-slip
won't be any magic tricks, use a scraper smaller than the spacing, you'll be able to scrape very cleanly without damaging the no-slip strips. you'll have more control with a scraper than you would with a power sander. with the rubber strips I'd stay well away from any strippers, it will either dissolve them or cause them to swell up. Afterwards depending on how well you've scraped you can go straight to the varnish after cleaning up, or hit it with some fine sandpaper I've never done it with rubber strips, but have done it with alernating 1.5 inch wood/carpet strips no problem. wood is wood, if you can't dissassemble you have to do the work in location. If you feel power sanding is the way to go, use a detail sander the B&D 'mouse' sander comes to mind as the one most likely to be known, But fein makes a great sander with enough attachments to make you reach for it anytime you need to sand/scrape/cut wood/metal/ceramic. A bit pricey, but when you've used one a few times you'll consider it cheap. fein tool: http://www.coastaltool.com/a/fein/multimaster.htmDon't have any connection with them but they are a great tool. Myself, I leave the fein in the truck and grab the scrapers for most detail work. for nicks or gouges in the wood you'll either have to live with them or fill them, depending on the construction of the sole you may not be able to sand them out, if it's laminated (normal for nearly all production boats) you should be able to patch it with matching veneer, or if there are 'hidden' areas, split some veneer off of them for the closest match possible, the more irregularly shaped you make the patch the less likely it is to be noticed. I play with sheets of veneer all the time and have actually look forward to some jobs! last one took 400 sheets of 4x12 cherry at $500 a sheet, don't want to hear OOOPS! too many times then.