I really don't have a clue. I'm sorry.
Is she starting her step over too soon maybe??? Try to get her closer to it before she has to step over...
Hairs better at this sort of thing:), she gets them to do it with a lunge line...
Becky
She moving at a walk. Both when we are on the ground and I'm in the saddle.
Raise it up higher so she has to lift higher or find a bigger log :~D
Might be clumsy, might be lazy.