catsittingstill

I do not like a boat with a lot of sheer, for exactly the reason you describe - too much inclination to weathervane. My boat two had only three or four inches of sheer; to ameliorate the possibility of a wave coming aboard, I decked about thirty inches at the bow and twenty-four inches at the stern. By putting in solid bulkheads where the decks ended, I created flotation chambers with enough buoyancy to keep the gunwales well clear of the water when the boat was swamped, which facilitated bailing.

I took a look at the boats on the Bear Mountain site; some very pretty wood there. I doubt you will be disappointed if you build their Rob Roy.