For reference, this is hunt seat in an all-purpose saddle on a horse with a fairly large barrel.
I recently changed lesson horses, and tack right along with it. I think there's something about the new saddle that isn't working for me, but I'm not experienced enough to pinpoint what it is. It's a different horse, who rides very differently, so it could be that, too. My instructor and I have been tinkering with it, but what we're doing isn't fixing the problem, so I figure we could use some help.
I've got what seems to me to be 3 problems, but for all I know it's actually one problem that is showing up in multiple ways.
1. Saddle is banging the crap out of my hoo-hoo when I post. Also, I'm having a lot more trouble controlling my descent on the post than I was with former horse, so my butt is slapping into the seat. Not only am I slapping the saddle with my tush, but I seem to be hitting in a weird spot such that my yoni is really getting pounded into mush at the same time. I also noticed it was hard to find a comfortable position at a walk, even. Saddle felt...I dunno, kind of pinchy or tight to me. The horse is a big-barrel WB, but the horse I'm used to is a big-barrel QH. They both have big bouncy trots, but I didn't have this problem with the former lesson horse. Ordinarily, I'd just assume that I was doing something wrong, but points 2 and 3 below are definitely something wonky with the gear, so I'm thinking this one might be too.
2. One of my feet keeps slipping forward so that the stirrup hits the arch of my foot instead of staying put under the ball of my foot. It is always the same foot, never the other foot. Teacher says I am keeping my heel down, so it's not really that. It happens whether this is the inside foot or the outside foot. We thought the stirrup might be the wrong length so we - shoot, now I can't remember - either lengthened it a bit or shortened it, and it helped a little, but didn't totally fix the issue.
3. The opposite side foot goes numb halfway through the ride, from the middle of my foot forward. My ankle feels like it's at too-small of an angle, which would mean the stirrup is too short, but when I measure it out before and after riding it is the same length as the stirrup that keeps slipping on my other foot. And both of them are the same length that I've been using all summer on the other horse. And yet, they are still, obviously, both totally wrong.
I'll appreciate any insights at all on this. The horse I'm riding now is SUPER sensitive for a lesson horse. He actually listens closely to my seat, and the squidging around I'm doing in this saddle trying to find some place where I'm comfortable, is sending weird cues to him and confusing him. So I'd like to fix this ASAP (preferably without buying a new saddle for someone else's horse).