Thanks, thats generally what I was thinking based on intervals from
Hunter Allen Power Blog: The Power of Cyclo-Cross and crosssports.net. I guess what got me thinking was the WKO4 personalized intervals that I had read about but hadn't actually implemented since I haven't actually used the software, but in a more general sense determining what my actual say v02max(5 min) power was and building intervals using that number instead of a percentage of my FTP.