I hope this photo of a drawing will elucidate a bit. For clarity, a splice is shown as two lines adjacent. Stitching is shown where the long splice is meant to be stationary, and the whoopee sling style splice (hereafter referred to as WS splice) is shown as two lines adjacent without stitching, and I hope the fact that there is a tail sticking out shows. The tail is used to attach a bungee that will hold tension on the whoopee sling splice so that it can be slid up and down to adjust the length of the whole assembly. It is a combination of Essington's idea to use a WS splice for a boom topping lift, though I don't think it will work without the bungee to keep tension on it.
That was on this thread:
http://www.briontoss.com/spartalk/sh...?t=2178&page=2
Also, it was partly an idea that came from the Constrictor jam cleat, which uses a line running through another one to grab it just like I am doing. Here is the Ronstan product page:
http://www.ronstan.us/marine5/constrictor.asp
Here is what I hope is a link to the drawing I made of my idea for what I am calling a trucker's hitch trapeze line assembly:
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