Kevin, the core and ascent products are the gems of the line for early season or those that hunt in warmer climates.
I have never had a product wick as well as the core zip-t; it is by far the most efficient base layer I've used and I wear it exclusively hunting in our hot weather down here. The ascent top works great as a second layer.
The ascent pants are tied for my favorite with the core zip-t. Very light, breathable, and I like the stretch in the material. Extremely comfortable. If you are looking for something to use in warmer weather, buy these two products and you'll be sold.
The newer "heavy" clothing is improved too. For you Alaska guys they have really stepped up the performance for their cold gear stuff.
I really like vests; Sitka now has 4 with different models that have some pretty cool applications. Check out the website for more info.
John, glad to see you paired up with Sitka. I think you two high performance manufacturers will work well together.
If you buy the Sitka gear, think of it like a system. If you layer with their products, not only will you stay warm, you'll stay DRY.