Well, the other day I decided to pull out one of the english saddles because I hadn't ridden english all summer and I missed it. Yeah, that wasn't going to happen. She had gained so much muscle on her back and shoulders that the saddle that came with her last year literally sat about 10 finger spaces above her withers and the other one, that had previously fit better than that one, would have bridged quite a bit if I had gotten into the saddle, it also sat about 6ish fingers above her withers.
I was quite surprised and bummed. I personally love riding english and I think Arabs look better english but I'm not going to torture her because of my wants.
I thought I just post this as a warning to anyone who rides their horse in a saddle that fits "ok". You could be really hindering your horses muscle growth and not even know, just like I was. Just saying.