I measured the distance this morning from the center of the bottom eye to the measuring point (as per class rules) and it is 3 1/2 inches. This gives me a 35ft 9.5in total headstay length (which is 1 inch shy of the rules max length)

With uppers @42 and lowers @42, I measured the mast rake from masthead to boom to be 15 inches
The true test will be under sail to see the mainsail shape / cut with the mast's prebend....I will adjust the lowers accordingly

Taras