Hmmm, if I were Hobie, and thinking of making a headsail option, I would then think about triangulating support for the mast head, via two rearward leaning sidestay plus a forestay (and some sort of swivelling masthead fitting to continue with roller furling). So I would make a slight running change to the Amas to include the future sidestay fitting....
Just thinking out loud
Sorry Bob, we were both thinking the same thing! Great minds etc
2012 Tandem Island "SIC EM"www.scenefromabove.com.au