Hey Rick:
I think I posted this pic elsewhere on this site. This is my buck from this past fall:
I have been on the unit 4 times during the late rifle seasons.
2005: Drew tag 3rd season rifle
2006: A family member drew 4th season rifle
2007-2008: Winter of the big winter kill (I think that was the year)
2010: Purchased 3rd season landowner tag
2011: Purchased 3rd season landowner tag
Since I have not drawn a tag since 2005 I currently have 6 points, and could draw the tag in a year or two. I know the unit pretty well and this fall I got a tip on a new spot that held a few bucks, however the quality and numbers of deer is not impressive at all. My friend who is a taxidermist said 165-170 is really the top end coming off of that unit. Before the winter kill we had at least two opportunities at 180+ bucks on each hunt. The past two years I went into the hunt thinking the genetics in the unit are great, and there should be a few good bucks left, there very well may be, but they will be tough to find.
On Unit 55 (late rifle) a 160 class buck is still very doable. However since a 160 class buck can be taken on numerous Colorado unit with less points then it takes to draw Unit 55 3rd season rifle, there are better options for using your points.
Even knowing the unit well, I wouldn't return until the quality of deer comes back.