Replying to Tips on broken grind

So iv been trying broken grinds and im having trouble, once my back ski is dragging on its edge it immediately sticks and slows me down. I don't know if my edges are to sharp but i feel like its my break thats dragging and getting caught. Once it catches my weight of course shifts forward, and yesterday when that happened i caught my edge on my front ski and it was a painful crash off the box. So is it my break? Are my edges to sharp? What am i doing wrong, thank