Originally Posted by Irvin
I think the OP is probably thing inking about flying clamps. With the distortion of the strings if you remove the clamp and move it only using a single clamp and straightening the strings each time you can also get that distortion out.
If using glide bar clamps (short bar only) then you're correct. If you have a long glide bar clamp for the crosses then you must use one clamp unless you are doing a 50/50 like the mains.
It all depends on the stringer, clamps, and method of stringing.
Sorry I wasn't more specific. I was using fixed swivel clamps -- Gamma Progression II 602FC... The string isn't slipping, but the clamp itself very slightly flexing back when the tension bar is released. The "flexing back" is very small, maybe 1/8" at most.