Is there a big advantage to a folding or feathering prop? Do you really get much of an advantage in using either? Is one better than the other?
What kind of boat and what sort of usage?
I have the same setup as Hugosalt-- 2 blade geared flex-o-fold on a saildrive. 34 footer. Probably gain a half a knot in speed. Works great in reverse. Price has gone up a bit (I think it was about $1,300 three years ago) but it looks like a piece of art work. Very happy with the product. By way of comparison, a feathering prop like a MaxProp would be close to three times more expensive. Boats are so economical ...