Thanks Richard !
I have noticed those forked backstays on other vessels and wondered what they were for. Doe's it stiffen the backstay compared to one long single strand ?
Beefing up the forestay is a good idea, especially as the furler is on it and that makes that wire harder to see and maintain.
The aft shroud terminates at the lower spreader to the same tang as the foreward lower shroud, the inner forestay terminates at the upper spreader.
The caps and uppers terminate on to a bridle like the one in the photo you posted of the adams backstay. That bridle then has a single clevis pin to a chainplate. I am not sure of the function of this feature, especially as one wire is the cap and is 5/16 and the other is the upper 1/4".
Lets see if I can get a photo attached.