Soda blasting is the preferred method these days, easier on the gel coat. I think waiting till the fall will do little or no harm to your boat, especially if you see little or no signs of blistering.
Yes, you must remove all the old bottom paints before applying a barrier coat. After having mine blasted I sanded it done smooth and removed any remaining bits of old paint.
Shawn & the crew of S/V Windgeist
1982 Tartan 37 CB - Hull #358
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.