I was messing with some rigging ideas the other night. I picked up some 7/32" Amsteel when it was on sale at WM, buy one foot get one foot free; so at .39 per foot I got 100 feet for $19.50
I will be possibly be using lashing to make tension for the lifelines, but I may also use deadeyes for the forestay. I have all new turnbuckles, but my synthetic rigging can be tricky... when splicing the eyes it takes some serious math and a little trial and error to figure out how much line is lost to locking brummel splices and then gain back when I stretch it under 400 pounds of tension on my rigging table. My forestay actually came up 2 inches short. (on a side note, when I figured out my math error I then spliced one of my main shrouds and got it within 1/8"). Anyway, I have a 2 inch long shackle to make up the difference, but I was wondering if I could use lashing to create tension instead. I also don't want to spend extra boat-bucks on Colligo deadeyes so I figured I would try what I have seen many riggers do, just lash through stainless sailmakers eyes.
Any good experiment has a control experiment first, so I set up one of my 1/4" turn buckles on the rigging table with the digital scale to see what kind of pull I get in pounds. I only turned the body to the half way point, it was getting a bit difficult to wrench in half turns of a flat table. I got to around 140 lbs of tension and it settled to 110 lbs.