I can see how hoisting it over starboard would be quite smooth, but what about dousing over port?
Wouldn't the sail be literally pulled over the jib/forestay?
Or is there a similar hole in the other hull?
Going upwind the extra weight of the wet sail could be beneficial though.
Any ideas if this is even class legal?
I haven't re-read the rules with this in mind but I can't think of anything that would prohibit using this kind of snuffer. Honestly, the snuffers we all use now require some degree of dragging the kite across the forestay and bridle. It probably makes that a little worse but it's probably do-able.