I put Vapor Trail strings on my BowTech Airborne 82nd in the summer, set cam rotation, cam timing, walk back tuned it, and sighted it in. Since then I have shot it continually. Logged over 300 hours in a Blind/Treestand in temps from 80 degrees to 24 below zero. I've hunted the dry plains of Nebraska in Oct., set in pouring rain in IL, and dealt with snow in 2 different states.
The peep is still aligned perfect, and Cam timing, & tune have not moved one bit.
I'm not sure what else you could ask of quality strings.
Dan