I'm shooting an old Oregon Black Knight that I had Barnsdale build new limbs for last year. He put Vapor Trail strings on it for me but they are too long and though I've been trying to get along with it like it is I've got to shorten the DL. Can I just twist the String? Do I have to shorten the cables too? I only need .5 inch or so but with a bow like this it has to be just right 'cause there is no forgiveness to it at all. Do you guys have any idea how much speed I'll lose by losing the .5 DL? I'll top out drawing 90-93 lbs.
Add twists to the string.
That will shorten the draw length. If you add enough twists,
then the draw length might drop 1/4-inch.
If you need to drop the draw length 1/2-inch, you probably need a new bowstring that is shorter. You can keep adding twists to the current bowstring, in order to get the 1/2-inch shorter draw length,
but the string may start to knot up.
When you have the current string, with enough twists to get the draw lenght you want,
press the bow again, and measure the twisted up bowstring
that gives you the DL you want.
Get a new bowstring and tell the stringmaker
the new bow string twisted length (finished length).
Just make sure to stretch the twisted up bowstring at 100 lbs of tension.
So, you have essentially short strung the bow.
You will lose draw weight.
The letoff percentage will also drop some.
You can get back some draw weight
by add twists to the cables
to shorten the ATA a little
increase the preload on the limbs, a little.