There's nothing wrong with doing Hunter/Jumpers, I'm not one for the "rules" but it is always great to venture into other aspects of the Equestrian World.
Heck, an Eventing Friend of mine just took Reining Lessons, and she had a blast. Another, exercises TB's during the winter *talk about leg exercises there*
I do Hunter/Jumper shows - but Schooling. I never joined an actual Hunter/Jumper association or anything like that, but they are fun to do none the less *the schooling shows I mean* never done a Rated Hunter/Jumper show.
Good on ya Stormy. Have fun!