On the LLM has anyone tried inserting a tube into the mast step rising vertically up about 1.7m, then attaching a windsurfing rig to it just below where the boom is attached, and some sort of foot plate at the base? Like the Iceflyer and what Sylk was trying but without the guy ropes. I don't see the loading at the mast base as being much different to the usual method. For me it would mean I could use rdm rigs. Also easy to vary the rake of the sail.