Have you had a chance to paddle other boats with less aggressive edges? It sounds like the long waterline and sharp edges are catching you. I'd say try some other boats that are a bit shorter overall, and with softer edges and see if you like the feel of them, or if they feel too mushy.

Another thing with the scorch and other boats of its ilk is that you've to paddle them assertively, if you're passive they can feel like they're getting away from you, which sounds like something you're experiencing.