Afb077 by
northseajunkie, on Flickr [img]http://[/img]
I've used several anti-slip covers. For the flat surfaces on my cat hydroturf sheets (see above for my backfoot) which has a pre-glued sticking side on their back.
So for preparation only light sanding and degreasing is sufficient.
These sheets are very popular in the wavesurf scene and I use them also on my windsurfboard. But with heavy use, you have to replace them after a few years.
For the side-standing with a rather sharp rounding to the deckside (as you can see), I use rubber antislip material (used on yacht decks) which I had to fix with contactglue. A little bit more work but they hold very good despite heavy use.
Last remark. When sailing on a rough sea ,a good antislip standing surface is almost more important than a watertight hull!