It seems to fit my horse well, but my horse is very green still, and I usually ride her in a western saddle, because we are trail riding, generally. But, I've stolen my kids' pony, firstly to pony my green horses off of, and secondly to give him a little refresher, because it is spring, and he's young and full of himself
. . . I ususally ride him bareback, because there is no saddle that fits him well and me. . . However, I have ridden him in this saddle a couple times. It might be perched a little high because he has a broad back, but all in all it seems decent on him.
The weirdness arises when I sit up there. First my stirrups were too short, and my knees went over the thigh blocks. Now they are long enough, and if I contort myself enough, my legs seem to hang where they should, but as soon as I don't pay attention to keeping myself contorted, I feel like my legs want to stick out in front of the saddle. Also, my feet feel floppy in the stirrups. When I rode with the stirrups removed, it was a bit better, because then I only had to remember to torque my legs backward periodically, instead of fishing for dropped stirrups simultaneously. . .
I think it is mostly unfamiliarity, but I'm also thinking an 18" saddle might work better. I am 5'8", so my legs are fairly long. They're not very flexible though!