Pressure is everywhere in CO, and hard to predict. 2020 I hunted the same area at the same time as 2019. Had 4 vehicles at the trailhead 2019, 25 vehicles in 2020. Fires, etc. all are somewhat unpredictable so you just have to be flexible and adaptable. Personally, I've had more encounters hunting opening week, especially if you are able to pattern high use trails or wallows/watering holes. Get far away from the access points and let the rest of hunters push them towards you as the season goes on. A lot of the rut in units I've hunted thus far has switched more and more to occurring at night talking with a lot of locals, etc. Had a campground host say he hadn't been able to sleep the past week because of bulls bugling around, but they're silent and invisible all day. Pressure pushes animals out, yes. It also causes them to hide and just be active at night. Frustrating when sign is telling you they're there, but they won't play ball during daylight hours.