The gullet are supposed to be heat-treated painted metal - not plastic!
My mom and I both have Wintecs - my Mom has the Wintec Isabell, and she got it lightly used for a great price, with the Gullet system and traditional flocking. Mine is the Wintec English 500, I think - the one without the equisuede seat - with the gullet system and Cair panels. I'm not real big on the air panels, since mine seemed a bit flat, but they're not getting any flatter. The gullet system makes it easy if you're riding on person's wide horse for one month, and the next month you're riding a narrow one!
One thing to look out for, though - you'd think that one saddle in the black narrow gullet would fit one horse, and then another saddle with the black narrow gullet on the same horse would fit the same, right? WRONG!! :( My Mom's saddle in the black gullet fit Sam better than my saddle with the black gullet, so I got the yellow gullet and a half pad - fits great now! And, it should fit Star, the Mustang X pony.
Both of our saddles were bought used, and if I had the money I'd pay to have the panels re-stuffed. But, with a wish list for a felt hat, rope reins and a few Breyer Models, I'm going to have to wait. And, eventually, I'm going to have to get new boots, too
. Oh, well. Money just flies, doesn't it?
Good luck with the saddle, my rating for Wintecs is absolutely positive, and my Mom will definitely say the same!