Well, I guess I'm kind of a renegade,
The spin rigged boats that I used as a template, mainly the I20, and Tornado, DON'T sheet back there on the butt end of the boat.

I simply bought a I20 spin, new, for about 950. USD, and rigged that to my boat. IN races I've done with other 6.0's with larger chutes, during the long chute runs, I wasn't loosing anything, and often being faster. The 270 sq ft chute, In my opinion, is ideal for this boat. Gee, I wonder why the Tornado guys didn't go with a bigger chute with all that beam width? Why didn't the I20 come with a larger chute?

I don't live in NE, and I'm glad you can see under your chute, that is oftentimes important, especially on the 6.ona, with it's low jib.

Todd