Originally Posted by Tesgin

Wow. This is an excellent thread. Extremely helpful. It has prompted me to do two things: one is that I did order a PI Select Thermal Jersey, but I also added a Craft Pro Zero sleeveless base layer. I am excited to see how I do. I will post a f/up to let you know.

Again, thank you all for your input here. I've learned a ton.
Tesgin