Re: rigging ideas
Kurt, is your mast roll wrapped or pultruded. I have found the the pultuded carbon are not on ly "heavy" but also much more bendy than the roll wrapped tubes.
one way to make attachment points on carbon tubes with out having to drill them is to wrap a fitting to the mast, much int he same way a fishing rod guide is wrapped to a pole. and then a light dab of CA will "lock it" in place. nice thing about CA one you star "unwrapping" the string it will break free such that if you need ot move it you can.
I have done this with small cotter pins which had been bent to suit my needs. since they are folded in manufacture to create a circleular cross section, each side of the wire is a semi circle make it much easier to wrap it.
not sure if the 3mm is going to make that much difference with sail shape on a run...
on my vic mast, I drilled 4 holes for the shrouds and I terminated the shrouds at the aluminum mast head crane such that there are now stresses on the holes in the mast.
IOM 81, 681, 881