On the Wave I use a small Harken Fiddle Ratchet with a becket. In light air, switch it off, and in heavy use the ratchet. Also use 1/4" Salsa (great sheet line, no core, non stretch, won't kink, runs throught the blocks with ease).
Can't imagine not cleating the Wave -- Ouch!

Pete, You could go 8:1 and use smaller sheet, i.e., Salsa, as it will still go through the blocks easily. That way the sheet will feed out when eased.
Also, you might think about the Ratchamatic. Wish I could get one for the Wave, but they don't make one that will work on the boat.