Eric, although a few large-horned, mature rams have the highest reproductive success, younger rams sire about 50% of the lambs. If some of the largest rams are removed, the smaller rams make do. There is no evidence that I'm aware of that removing large, old rams affects the nutrition of ewes, as you claimed in your first post. 

Shooting the larger rams does ultimately result in smaller-horned rams. However, restricting the number of hunters by permit, harvesting less than 3% of the total population, and limiting the harvest to full-curl rams is expected to weaken the effect. As I said, no decrease in horn size has been observed in Alaska's Dall rams harvested since 1972. 

You also don't get the point about growing season. The DEFINITION of growing season is number of frost-free (i.e., above freezing) days per year. Find me a definition of growing season (that you haven't pulled out of some dark place) that refers to hours of daylight.

Being hard-headed doesn't mean you are right.