Well… probably in a different price range/ quality category - but I recently had to shop for a very round, mutton-withered gaited Missouri Fox Trotter. The shop that I trust explicitly for fit is West 20 in Wisconsin.
After sending photos and wither tracing… The store owner brought me a Fabtron endurance, special contoured tree to try. I had to wait almost 4 months for the saddle with that tree.
I like Fabtrons because they use the Equi-fit, Steele tree and their upper saddle is ALL leather, providing a solid support; while the skirting and fenders are cordura. Stirrup “leathers” are leather-reinforced web.
I am also ordering a pair of SA Walls slant stirrups with 3" tread.
I have not had a chance to ride this saddle but several friends have sat it and like it over several others we all tried during a recent horse expo.
The retail price on this saddle is $719.00
I also have a friend who recommends switching saddles for long rides or week-long rides. Using 1 for a few days then a different one for a few days - of course, it all depends on the ride’s rules and accommodations.
I have ridden in a BMSS - I really, really liked it and considered it for this MW, MFT… however, between the trainer and myself - we were worried about front-to-back pinching due to the shape of the horse, since the BM’s have a solid pommel and cantle and because this was a gaited horse with their particular movement.
Good Luck with your saddle search and with your upcoming ride!!
ETA: This saddle allows for “straight” cinch/girthing or centerfire rigging.