We are fairly new to horses and have a question about saddle blankets for western riding. Our mares are fairly straight backed and we were told that our saddle pads are too thick Causing the saddle to move around on their back and we only needed a blanket about 1/2 inch for them. The only blanket we’ve been able to find that thin are fairly long (38 inches) but we really only need one about 32-34 inches depending on which of the two horses it’s going on. Question is can we use the 38 inch blanket and fold it a few inches back and put the folded end at the withers or is this a no go? It just seems like most the weight is up there and the wool blanket seems like it wouldn’t have enough padding alone plus being too long.