thanks.
lots of info.
guess i hsve some research to do...
no shops within a few hours so I was taking a stab at wrapping my own "endless loop" in the mean time...
strung it and the string was right at the heel of my hand....
dang, didn't used fixed posts when laying it out...
reverse strung it and measured again...it was 1-/2" longer than intended..
unwinding it now.....
PitA.....
live and learnd, but should have known to pin the ends for proper layout...