Originally Posted by thenrie
Mohair cinchas don't stretch.
I agree with most of what you've said, thenrie, except for this. Mohair will
stretch, especially if it is a new cinch. A couple of years ago, I bought 2 28" mohair roper cinches. After using one for a while (several weeks of hard riding), I went to swap them out and the used one was about 2 inches longer than the new one. I don't think it happens all at once on the very first ride, but it does happen. After it gets to a certain stretch point, though, it generally stays there and doesn't stretch anymore during its life.
I, like others, only use mohair string cinches. They just seem to hold better, they have some give, and I've never had a horse sored by one that was well cared for and properly adjusted/fitted. Like anything else, if I let them get off-center or too tight or they get caked with salt/mud and are stiff enough to hold the shape of the horse when you undo the latigo, then sores are likely LOL.