Darryn,

Do you have your spreaders set up cat rigged with the tips level with the back of the mast ?

I've just repositioned mine to this location because I thought the rig was too stiff/powerful and wondered what sort of tension you use.

I haven't had the mast on the boat yet due to beam rebuilding and had started to tension the diamonds and noted a significant increase in mast bend so I stopped tensioning. I also recall that with the diamond wires more in line with the mast centreline I could induce a reverse camber with any sort of stay tension. The new setup should overcome this to some extent.

The Glenn Ashby Catamaran Tuning DVD indicates that a 4 cm distance from the diamond tips to the rear of the mast was a good starting point but that was on a F18 with a much bigger/stiffer mast section so I wondered how relevant it was to the "softer" Mozzie mast section.

Regards,

Peter