I watch other zipperline master on hill, most of them use blocking pole plant, while I have very short pole(height just match my hip) and I don't use blocking pole plant, that's problem, since next mogul is far reachable on steep. I believe this video below, the U10 coach suggest pole plant similar to Aiko. I like the idea of edge change on mogul in the vid, which is pull back down hill ski , as he said in mogul to get edge change is not free as on flat,I am starting practice it on flat.