Hmmm...I dont' have any experience with the roto-molded boats, but it seems to me that the Bravo wouldn't be desireable for more than one person - it is quite small, and I bet that it would be terribly bogged down by the weight that you mention. I'll let someone with more experience with the Wave/Bravo give you a real answer though.
My advice is that you hook up with some Hobie sailors in your area and take a ride on their boats - I bet you could find a Wave and a 16 owner in your area that would love to do so!
While a 16 might take longer to set up, you can get a used one for nothing compared with a new Bravo/Wave. They take up more space, but offer the crew something to do besides act as a mobile counterbalance
You also get the joy of trapezing! An older 16 without super-adjustable downhaul/outhall/jib cars etc is probably simpler than the Laser to rig, but, never having rigged a Laser...
Anyways, ask around and see if you can get a sail before you even consider buying!
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