I have a 7 year old gelding, who I'm starting to train in games. He has good flex, and we are working on rate. Ever sense I started training him I've had problems finding a good bit for him. He tends to like being on the bit, and I'm working on correcting that. I prefer not to use severely harsh bits. He has a pretty soft mouth, so any bit with a port or anything of the such is out of the question. But, my problem is he doesn't have good brakes. So I need a gentle bit, but one that gives me brakes. What bit do you recommend me to use? Would I be better off trying a hack on him? Currently right now he's in a tomb thumb, because that's the only bit I own he likes and listens in. Any advice would be great!