Try everything under the sun till you find what works for you and your horse. I am a fan of the t4 as well... but I wouldn't pass up a decent priced wintec. When your saddle of choice has been an old school Stubben, everything else is like riding a couch.
I am currently riding in a Harry Dabbs Euro, which is ok, fits my horse, but I'm looking for a saddle with an adjustable tree.
To be honest you don't really need a dressage saddle till you hit Training/Prelim. At that point the dressage is mostly training level equivalent and can be done under normal english tack.
If your horse says no, you either asked the wrong question or asked the question wrong
And God took a handful of southerly wind, blew His breath over it and created the horse