Wouldn't work on my F12. The problem is not adding the "wires" (stays) but the loading they put on the boat as a whole. The bows will need to be reinforced to take the forestay loadings, side stay hardpoints will need to be added, the mainbeam will need to be reinforced to handle the massive mast step load. Boom will far to large so the mainsheet that attaches to the middle of the boom now will need to be increased putting higher loads on the "traveller setup" I have in mind, which probably can't take it. And then you don't want a 11 sq. mtr. mainsail on a 12 foot platform anyway. The F12 is more or less optimal with 7.00 to 8.00 sq.mtr and added 60%-40% sailarea will not make the craft "more controllable".

I think you can use the rudders, tiller and tiller extension of the H14, maybe even cut down the trampoline and use some blocks and other fittings and that is about it.

Forget about the Hobie beams, more trouble then they are worth, bloody curved things with heaps of special fittings. Just buy two straight alu tubes for 150 bucks and get it done right.

Wouter