Re-rig Cape Dory 25D

I'm trying to work from the Apprentice, pg 136, but the graph of course does not go down to 18.165' waterlines. I'm estimating again, but using a figure of 8,000 for the RM₃₀.

That would give a shroud load of 3,000 lbs. I'm not sure I understood the section regarding selecting wire, mostly the bit in which the load is broken out between uppers and lowers. The cap shrouds by a safety factor of 2.5 would be dealing with a load of 7,500, and the lowers 32.5% of this.

Going to the appendix for 1x19 ss 302/304 that suggests 7/32" or 1/4" wire for the cap, 1/8" or 5/32" for the lowers, probably the larger diameter for each.