My latest thought to deal with all these issues is a snuffer "bag" that attaches to a rigid hoop mounted slightly ahead and above the front beam on port side to hold mouth open (cat rig you don't have worry about jib :-) ) and bag that zips onto top of tramp or fits into "pocket" on top of tramp. Only problem with bag on top of tramp is the mast base mounted controls on that side :-( including rotator line or rotator itself. Another option I thought of is a snuffer chute mounted inside the hull- essentially with a deck above and below. Downsides of that- one hull inherently heavier and if you ever stuffed up to the snuffer mouth would probably end up taking a large water sample! I also thought of incorporating a Marstrom type "snail" snuffer either inside a hull or built into a front CF beam (ie shell of "snail" is structural- heck you could even put it right in the middle under the mast to raise mast base).

Kirt