I agree with everyting "flicker" wrote. But then I own an H37C(1979).
No blisters and no leaks. Sail single-handed all the time. But how I wish she would sail to a PHRF of 155(not in my shoal-draft of 4.5'').
Try the "sailboat calculator" just to see how the H37C ranks.
http://image-ination.com/sailcalc.html