It's a horse-by-horse basis. Some horses have no problem, and some do. Mainly, what I've found, is that the majority have no problem, but there are a few very sensitive horses out there that are bothered. I have a tacky-too (the reinsman one? is that the right name?) western pad that i use exclusively on my paint, and we work hard. It's never bothered him at all, and has never rubbed ANY area of hair off (and he's REAL quick to lose hair with blankets/etc.).
I have just a tacky thin pad to put under other blankets if things slip, and I use that too with no ill effects whatsoever. They're not bad, awesome to clean, and if your horse works with it, I love them. :)
Dressage in Jeans
- My blog with dressage tips for happy, relaxed horses, specifically for those who ride dressage in western saddles, no saddles, cowboy boots, or jeans. ;) Also now with cute pygmy goat pictures! :P