You drew entirely the wrong conclusion from my statement. Perhaps I didn't explain myself properly. I mean for a class to succeed (or fail), boat weight (high or low)is relatively low importance compared to other characteristics and circumstances.
I agree with that entirely. I find it interesting that this thread turned from an attack on heavy boats to the defense of the 18HT. I don't think there's anything wrong with the 18HT - it's just a boat designed for relatively smooth water sailing than, say, a Nacra 20.