I am just starting a 15' sailing/rowing skiff that I will use for beach cruising.  The plan is to paint the hull exterior/interior and varnish the spacered inwals, transom, seats and spars. 

For the interior, I am considering Interlux Brightsides.  I have used this on several kayaks and it has held up rather well and I like the numerous color choices.  I would mix in some Intergrip to make the bottom non-skid and use straight Brightsides on the interior sides.  Have anybody else used Brightsides with Intergrip?  Any other suggestions/comments?

For the exterior, I am looking for something a bit more durable than Brightsides.  I am considering a silicon based product called Wearlon Wetlander.  It is reportedly very tough and low friction but I don't know anybody who has actually used it.  My concern is that this is an irreversible decision, in that once I put silicon on the boat, I will always have to use silicon based paints.  Has anybody out there used this product or one similar?  Any other suggestions for a tough paint?  Thanks!