Would using a shackle on one of the cunningham primary lines/blocks be a rules violation? I'm using splices for all ends and the block doesn't fit through the cringle. (but the thimble will) I hate knots; they kill line strength and look fugly! (I don't have a single load bearing knot on my 505) And just for my own curiosity, why no tapered lines? can't be cost, its just stripping the cover off the line thats there already. Its just time. And why no Kevlar/Aramid lines? (not that I'd ever use a kevlar line) Thanks, Dave.