Mike,
I had an I-20 for several years and they are really fun to sail. Nothing like flying a shute in a stiff breeze, no helm, and speed in the scary zone. I need to catch up with you and Reiter this summer and go for ride. I can crew an I-20 pretty well.
Tris feel docile in low winds because they are big and just cruise but as the breeze picks up they act like a cat on steriods.