Revel's A-frame

I'm pondering why it's so easy for Revel to do one hit on the A-frame. Maybe his natural stride is long. I'm not sure how to communicate to him what I want (how to get the correct behavior so I can reward it). And...it's really hard to see what he's doing with all those legs in real time. I taped some sessions today, with the A-frame ramp on a gentle downward slope, just to be sure of what I'm seeing. Time to think some more.