I tried an old Simco gaited saddle on him today and I think it fits ok and he moved ok when I rode him in it but it sits pretty low on his withers and I just don’t know.
I have no idea how to post images here. But here’s a link to an Imgur album of the horse with the gaited saddle on and some without a saddle on https://imgur.com/a/VfTDV#0[/QUOTE]
Do you have anyone helping you? Western saddle fit can be quite complicated.
The pictures you gave the link to, the saddle bars are too wide of an angle for your horse and that’s why the saddle sits downhill and close to the withers. It’s not a horrid fit but I think we could maybe do better.
A few things we cannot access by not being there in person: Does the saddle rock on his back? Are there any pressure points when you run your hand along the saddle tree (the actual tree; not the leather skirts as some people mistakenly do)?
Your horse does have prominent withers and a fair dip in his back, so it might be a little more difficult to find a good fit. I am happy to see that you are least placed the saddle where it belongs. Many people place a western saddle too far forward.
This website will give you some more information about western saddle trees:
You can try the templates from horsesaddleshop.com but those templates don’t give you the whole story. For example: Two saddles can list themselves as being full quarter horse bars with a 7" gullet and they will fit completely different. There isn’t a standard.