It's too late now for me, but how did everyone determine where to locate the noseblock? I made several very careful measurements on the scale drawing and came up with a method for locating it I thought would work but it turns out it is too low. I have not been able to come up with a combination of shackles that will make the bobstay tight, so for now I will have to use strong rope--don't want a sudden gust to pull the bowsprit hard up against the tip of the bow.
I plan to order a turnbuckle to integrate with the bobstay and have the bobstay cut to fit and so on by a local machinist who can attach the nicopress sleeves. I don't see any feasible way to get the shrouds and forestay all properly tuned without using turnbuckles on all three. Thanks to chaertl (Chris) I have two (free except for postage) SS turnbuckles already on the shrouds. To get them to fit easily I moved the chainplate locations back slightly--maybe 1/2" to 3/4". I don't think this will have much effect on how far the boom can travel. (Thanks again Chris. I don't want to get a third turnbuckle from you if you still have any though. For the bobstay I want to see if I can find a shorter one.)