Great info guys. Warbird a couple of guys at our club have used the really fine grit. The way I understand it I can just keep building paint up over it until its as smooth as I want it. Jimbo its never too late for someone like me that loves old boats, Ive contacted both those companies to get info it will be interesting to see wether I can get the product in South Australia. I dont mind the harder grit because we always wear sailing footwear here. The old feet get a bit numb.