Thanks, Scott! I appreciate the info.
That really is the crux of it. How to take economy and technique out of the equation to be able to make a fair comparison between sports that have different muscle engagements. I kind of figured this would be a “depends on xyx” type question, but it helps a lot to get some feedback from someone who’s worked with a large pool of athletes.
My running and skiing are at about the same level this season, so I’ll stick with the running zones and feel it out at the beginning of the nordic season.
Thanks again!
Ryan