I have a 6 year old Tennessee Walking Horse gelding named Spirit, who broke his left hind fetlock when he was a weanling before we bought him. He is competely
SOUND now. We knew this when we bought him and the dude said that he would not be a good horse if I wanted to jump competitively and stuff. I was fine with that (cause I don't).
Then we brought him to his first barn and my trainer drilled it into my head that there was a possibility that he could go lame in a couple of years. She said that she'd seen it before and that it could happen. It scared that crap out of me.
I thought I didn't want to jump at all, but then I saw everyone else around me jumping and I look at pictures of people jumping with their horses . . . can you say jealous?
So I called my trainer and asked if I could possibly jump him at all. She said his max was 2 ft. I really don't want to do it if there is any possibility that this could hurt him long-term or make him sore or anything.
So here's what I'm asking . . . can I jump him at all? How high? How much? How do I take care of him before and after I jump him?
I've jumped him 3 times since I've had him (a year yesterday

!) I warm him up properly, put wraps/boots on, cool him down properly, then cold-hose his once-broken leg and put liniment on his legs. He's also on a joint supplement.
Thanks!