Sprints and uphill leaps

I use ski bounding ( uphill leaps) as part of my skimo training. I use poles when I do them. its dynamic power and a gets me into Z4 very quickly. I do short sets on a steep hill for not more than 60 seconds at a time. I tend to pick a long uphill, do a set of leaps, hike to recover, then do another set, but always moving uphill. I let the terrain dictate how many sets. I do these for skimo prep, but I also race Sky Races and consider them relevant.