Well I'll go with a full review for everyone through the end of this hunting season but ended up going with both. In all the reviews I read you really just need both. My initial concern was the guide pants were going to be too heavy. Not anymore. The pants are a very small step above the attack pants. Probably just perfect for the late fall.
Kuiu has really nailed down their product for arguably the best hunting clothing line. My continual frustration is their lack of service on carrying inventory. Its a shame they couldn't just nail it 100%.
Anyways. Full review coming late fall.
I thought I would report back on this... I ended up with both pairs and just got back from a 7 day trip here in Montana. One of my biggest concerns is that the guide pants were going to be too hot to wear. It all comes down to what and where you are hunting. Our temps dropped down to 19 degrees and the guide pants with long under were perfect and were fine without long underwear up to about 55 degrees, then they became a little warm in high movement situations, that's when the attack pants kicked in.
The quality of Kuiu is top notch, I don't love their service, but I do love the quality... So there's my breakdown and when it comes down to it, it's just for you to decide on your hunting conditions.
15-55 degrees go with the guide
55+ go with the attack.
Hope that helps someone.