The Trailstar works anytime and most anywhere. Down here in FL, weather takes a backseat (in the worry dept) to critters, especially fire ants, so the SMD Serenity accompanies me with it in all but the coldest times.
You mentioned your 'mid is sized for you. It feels great to have something that's custom-fit for you, doesn't it? :) The gear I love most is always "just right" for my style. Happy for ya!