Thanks for the chance to educate myself. On you mentioning it, I looked up the difference between a double headsail sloop and a true cutter. It appears the main difference is that in a true cutter the mast is placed farther aft, and thus, it's designed to rely on the headsails more, whereas a double headsail sloop is really designed around a single headsail, then has another added for a little extra canvas, better use of or shaping of the pocket, or something else?
Is that even vaugely right? What are the advantages of each of these designs?
BTW, is the PS31 a cutter or a double headsail sloop?