I've had my horse since she was 2 1/2 (she is 8 now) and when I got her she had been kept in a small pen and wasn't really sure about running. When I brought her home she would canter around but it wouldn't be very graceful and it took some encouragement for her to speed up in the saddle. At the time I wasn't really concerned about lead changes (I was learning too) and over the years I have taught her a lot but to my knowledge she has never picked up her left lead and cantered in it for an extended period. I've tried everything I can think of...lunging, jumping out of a corner, circling until she changes, trotting down a fence & turning into it as I ask for a lope but nothing seems to work. She will pick it up sometimes but mostly just in the front or back. Or if she does she will immediately drop back down to a trot or change back to the right. I have no reason to believe that this is a physical problem but more of a mental block.
Thanks For The Ideas
PS - I'm not blaming my horse for this issue and I don't think it is poor riding on my part but I'm trying to help her overcome this block.