Ranchhand, 27 and 181 are decent units and if you can endure the high volume of hunters not just for deer but also for OTC elk you stand a good chance. The genetic in the area is not bad, last year in 181 I was up in 4th season and saw 2 bucks that would score 170+. I think that if you can bear the weekender traffic and get off some roads you will have a good chance at a MATURE buck. Not saying he will be a 200" deer, but a 4 1/2 y/o buck is doable in the unit. For a leftover pre-rut tag its certainly not a bad idea to pick it up if you want to hunt colorado this year. Let me know if i can help you anymore!
Aaron