F20 or F20S(uper)/F20HT? I assume you mean the latter, which is the same thing for me.
Yes, but I don't know about F20HT. Would that be a uni-rig? I prefer a jib for distance, as some portion of a distance race invariably ends up a beam reach.
I am not sure, but I think a sloop rig works better on that point of sail?
So for me -
10ft beam, 20 ft. length
boat weight under 350 lbs
sloop rig with spin
Wing mast shape (maybe)
double trap
daggarboards you can raise/lower from opposite hull (foils, maybe)
mast controls (outhaul, downhaul, rotator) led to skipper position
Trampoline easily removed from hulls (to facilitate breakdown for travel)