I was surprised at the weight of the towel, as well as the wool sleeping socks. I think I'm going to opt for another towel(campmor brand 1.6oz) and I might even take a second pair of Defeet for sleeping instead. This will drop me 3 oz. I might stop at McDonalds for a coffee on the way down.(I'm headed for 8oz drop) I hear what you're saying on the LS as the sole shirt I'm wearing. My concerns:
1. The Patagonia is Black, if climo high temps stay true, I will see low 60's. I don't want to sweat the thing up and be cold when the sun sets. It is zip and can be unzipped for cooling off.
2. I like ditching my hiking shirt for a dry shirt at the end of the day. Not always wet, but I'm being overly cautious I guess. If I take the 200 wt. fleece pullover instead of the vest, I can wear it sans hiking shirt at the end of the day or wear the vest w/ my Windshirt over it.
Getting that 8oz shirt and the other 8oz out of the pack is going to help!