Carp,

From what I've been reading CO is the place to go for Mulies these days, unless you have $1000's of dollars or get lucky in a draw. Anyway, for CO the secret is to accumulate some preference points. There are many good units where a good mulie tag will only take 3 years to draw. CO puts put a publication (also probably on thier web site) that breaks down each unit and tells the amount of PP's needed to draw a tag. By accumulating some PP's you get into areas managed a little better for quality bucks and have less hunting pressure.

Everytime I've been to CO I see a lot more mulies in the lower elevation than I do up high. I also seem to see more of them in the juniper, oak brush than I do anywhere else. My experience is pretty limited though as I only get to CO about every other year. I'm sure someone from CO can give you some really good direction.

I would concur with you on the set up of your muzzleloader, almost exactly what I would shoot. You were probably aware of everything I just wrote, but the topic sparked some interest with me b/c I have accumulated about 4 PP for deer and will be planning a trip in the next couple years.