[QUOTE=Pocket Pony;8441745]
IME there’s way more to fitting western saddles than there is dressage saddles. [/QUOTE]
Having fit both English and Western saddles myself, I strongly agree. I think Western saddles are much more complicated because it’s harder to see what’s going on underneath all that leather, and you can’t make modifcations like you can to an English saddle.
[QUOTE=lorilu;8440480]
I expected comments regarding skirt shape and saddle length as it applies to the back, but… I guess I’ll just see what is out there. [/QUOTE]
Honestly, skirt shape usually has very little to do with saddle fitting. Unless you do happen to have a horse with a very short back, then a rounded skirt can help it not to “poke” into their hip. The skirt should not have much to do with weight disbursement; that’s the responsibility of the tree.
As far as saddle length, you didn’t say if your horse has a long or short back, so it’s hard to make suggestions without the information! But even still, if you are looking at around a 15" saddle (or smaller), the tree length will be fairly standard. Of course, there are differences in whether you get a roping saddle or a reining saddle or a barrel saddle, etc. But there are plenty of saddle makers who put the the same tree in different styles of saddles; the tree is the same (as far as bar angle and such goes), the outer appearance (and maybe seat) is different.
That really is your best bet, taking your horse to a tack shop and trying them on.
Unfortunately, there is no standard in the Western world. Just because one saddlemaker says their saddle is semi-quarter horse bars, does not mean it fits anything like another saddlemaker’s semi-quarter horse bars.
It’s all trial and error. This will apply for your skirt shape and your saddle length too. You may find a saddle that fits his shoulders wonderfully, but maybe the tree is too long for him. Won’t know until you start trying on saddles.
Plus, if you do go to a tack shop, that will give you an opportunity to sit in the saddle as well and see how it feels to you. While it is important to fit to the horse, it has to fit the rider as well.