I am riding in mid-30s to low-40s weather. I have decent Pearl Izumi winter bibs which are very comfortable. I also have a Pearl Izumi shell to cut the wind (which is VERY effective).

I'm still a little cool: I had been using UnderArmour cold gear but don't like it cuz it gets wet, and I get cold.

I'm looking at one of two options for under my shell, and would appreciate feedback or suggestions:

One would be to go with just a decent thermal jersey by itself under the shell (I'm looking at the Pearl Izumi SELECT Thermal Long-Sleeve Bike Jersey).

The second would be to go with just a decent base layer and maybe throw a summer jersey over it, maybe some thermal sleeves as needed, and then the shell on top of that (I'm looking at the Pearl Izumi Barrier Long Sleeve Base layer).

So that's my question. Would I do better with a base layer or a thermal jersey? I'm very pleased with my bib and my jacket/shell. Not sure what's the better way to complete my package.

Thanks in advance,
Tesgin