When i did this the first time on a cold morning I had on most of my clothes and got to a spot before shooting time. While sitting and sweating for about 20 min waiting for the sun a chill came over me being all sweaty and damp that my shooting ability went to 100 yds or less. I learned to go with very little clothes on, stop for 15 min cool down and change to dry hunting clothes from back pack.We would start hiking up the mountain at 3 am. It's crazy how long it takes to go up, but only a fraction of the time coming down.