My experience with a Hooter on an TheMightyHobie18, and on a SC20, was that the biggest drawback of them was the difficulty furling them when it was blowing hard. To get them to furl cleanly and completely, the initial four or five revolutions have to occur with absolutely no tension on the sail. Otherwise it won't develop a large enough diameter to fully furl the rest of the sail; there's a limited amount of furling line that will fit on the furling drum, even with a tapered (to 1/8" dyneema) line. In bigger winds it's hard to blanket the hooter enough to get it started gently. It flogs, putting too much tension on the sail as it furls, creating too small an intial diameter to furl properly. I had to drop the whole mess a couple of times when the wind built to around 20. I could sail it, but I couldn't put it away! I'll be real surprised if an assym spin will furl cleanly, even in no air. Seems like the sail needs a pretty flat cut to furl.

Dave