My new saddle arrived today. It has an adjustable tree that I'm trying to adjust to the perfect size according to my mare's extremely wide withers. I have ridden a couple of times and am slowly getting closer to the correct size.
Her movement isn't restricted, she doesn't object to the saddle, her spine has clearance, the saddle seems balanced, & I can fit 2-3 fingers between the saddle and her. I also feel balanced when riding.
However, I am still getting dry spots behind the withers. They are not very small, about 3 inches wide. I couldn't work up a good sweat today to really judge.
If a horse has dry spots behind the withers, is this solely due to a saddle being too narrow? Or could this be because it is too wide?