it'll be interesting to see if a beach cat can make the "Y" form of alinghi's support system work. smaller beams and less twist...
I did spend a lot of time trying to integrate this into Bitsa when I built it, slung under the tramp it has a lot of benefits such all the loading of the downward pressure of the mast can be absorbed by the beam, integrating the spinnaker snuffer into the beam cuts down on wind drag, a direct fixing for the front stay means much better jib control, the list goes on and on of benefits.
What I couldn't find was someone who would calculate the loadings and transfer that into carbon fibre layup for not a lot of money, any of the companies recommended by the composite suppliers thought it was for an AC style boat and were wanting to charge accordingly. I had quotes just for calculating the layup ranging from 1000's to 10s of 1000's. At that point I wimped out and built the boat as I did with a sort of central beam type arrrangement.

So any body out there wanting to do a quick calculation for me then please PM, I would still like to build it and have the moulds sitting waiting to go.