The H16 is indeed a great boat, and with skill can handle 20 plus. But they are low volume bows that when submerged, stick badly, making recovery tough. Some of these other boats suggested have more bow volume, and some have more forgiving(less flat) decks that return to the surface more easily. Thus might be easier (less dramatic) for a new sailor to learn on. Crew weight needs to be way aft on all cats when driving downwind in a blow.

Dave