Give me all the advice you can :) He is my little brother's horse, but my mother and step-father are both working with him to do whatever they can to help this big guy reach his potential. He mostly neckreins, but works off leg cues better than anything.
He will not take the right lead, he always takes the left, (and is really smooth doing it) Advice on that would be really good too. I've never had one that wouldn't take it up even when pushed in a circle and given the cues. We tried letting him learn the cue for the right lead and hoping that would help carry over, but he still won't take his right lead after almost 6 months of work.