A couple of years ago I decided my saddle and I were breaking up. I tried a CWD and it wasn’t a good fit for me. it was a friend’s saddle and made for her requirements, and I just couldn’t justify spending $$$ on some of the “in” saddles. We have a saddle fitter that comes to the barn, set up an appointment for her, gave her my budget and was open to used and new saddles. She sat me in a Hastilow which brand new came in $25 below my budget. I really liked it so it was a done deal. What’s better is that I could take that saddle right then, and it wasn’t a trial saddle) and she’d make any adjustments to it. Also had 2 follow-up fittings which were included in the sale price. The Hastilow is adjustable, which I wanted since he’s older and bound to lose some muscle as he ages more.
3 other people at my barn also got Hastilow saddle. My understanding is Hastilow won’t sell their saddles thru anyone but master saddle fitters which is also good.
I’ve ridden in a few Antares and have found them quite comfy but I’ve never ridden in them for any length of time.
Because of the OP’s horse breed, and the adjustability of the Hastilow, and reasonable price tag (like 1/2 of a CWD) I’d see if you can locate a fitter or rep.