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Windrider 17 Mast Raising System Version 2 uses the same boat winch set up as version 1.
I've now used some off the shelf marine fittings and a length of anodized aluminium pole to triangulate the mast on the centre line of the boat. I have modified the rear removable mast support to come onto the centre line of the boat as well.
This is much more stable, stress free, (no more wobbly masts flailing about, even when the wind is up, no more worry about damaging the mast pivot etc.