I have a tacky too pad and I love it. I don't think my horse sweats anymore or feels any warmer after a ride with this pad then he was when I used a fleece pad. My horse doens't mind the tacky-ness and it has never pulled his hair out. It defiantly doesn't slip around, which I love because my boy is still training and is very spooky...
I don't do any intense riding though, just trails and simple arena riding.