I used Sandtex lightly textured masonry paint on the decks as non-slip. Initial impressions are that it gives superb non-slip results, to the extent you need to watch out for grazing knees, bare feet etc. It also looks very good. Not as yellow as I feared. It has chipped a bit in the fore deck where I have been bouncing the anchor around, so that is not unexpected. It holds the dirt, which is significant if you anchor a lot in Poole Harbour, which is MUDDY. It really wears out deck scrubbing sponges as you try to clean the dirt off. I have started using a broom, but that may well grind down rapidly. I will be interested to see how it lasts over the season.