I realize this is a few months old. Did you ever get your answer from Tartan? I have T40 number 63 and I have the inner headstay as well. Mine is backed up in the v-berth with a cable and turnbuckle down to the stringers. I have a storm jib
with hanks that I have never used. The previous owner told me he used it a couple of times, once in about 60 kts. off Cape Hatteras. I have runners, but I'm not sure where they should be rigged on deck
. On big racing
boats I've been on the runners were lead well aft and outboard
to the toe rail or a padeye. I'm thinking with these the aft end of the Genoa
track would be sufficient.
Tartan 40 Sister Moon