I have just discovered Premier Equine & now have a synthetic dressage saddle & a jumping saddle. I previously had Thorowgoods & before that Wintecs. Light, not expensive, I really love them!
I had a Wintec GP for my old Arab for about 10 years and never had any trouble with it. She was incredibly difficult to fit due to a very forward girth groove and I kept trying to "upgrade" my saddle, but kept having to come back to the Wintec as everything else just slipped forward. The physio was always very pleased with her back.
Mine was flocked, but I did later get a dressage version with CAIR panels although I didn't like it as much.