Never put in for cow tags because of the cow/bull ratio vs what you figure you'll see..
In 3 hunts I've seen one cow in range, not identifiable sex wise for sure until it was too late.... and have yet to see a non legal bull..... and ahve seen bulls about 2-3 times within range on all 3 hunts....
Now I"m scared to put in for a bull tag. But no worries, my hunting days in CO are over anyway.