I dont know anything about those particular units, but I have been in Colorado for three years now and I am just getting use to the altitude. I have an archery tag unlimited bull only, and I am going to be hunting up here around Rampart Resevoir. There is a pretty good size herd up here, but I have also seen alot of elk just south of Castle Rock right off of I-25. Dont know if it is private or state land but there were alot of animals there. wherever you hunt good luck and be sure to get in shape!!!!