That's exactly right. But if it's out of character for a horse, she might want to check her tack, make sure nothings pinching. More then likely tho, it was just a test, and only a test:)
Becky
If he was OK and he was good under her with a minor correction, maybe it was just a test of new rider and new surroundings.
~But, it probably wouldn't be a bad idea for the long run to go to a saddler and have her saddle really checked and fitted to him to ensure it really is a good fit. It could be that he might do fine the first time the saddle was used but would be sore when contact was made ~again~ on a bad spot.
I remember that from a long bicycle trip. My butt felt fine until I sat down in the seat the ~second~ morning.
Yeah, he's bowed up with me a time or two out on the trail. One time when going up hill, one time going down, and one time when we jumped a good sized log and I had a none too gracefull landing on his back. In every instance, a scolding and quick pull around in a tight circle was all it took to put an end to it. He's just like any kid I guess and is going to test his limits.