all the great feedback in this I've made some adjustments:
On Trail:
socks
sahara pants
sun shirt
sunrunner hat
in pack:
capilene pants
long sleeve capilene shirt
down sweater
extra socks/boxers (1ea)
pileaus rain hat (I wear glasses so need a good brim)
powerstretch gloves
bandana
I've cut a few things out and lightened some others in that list. The big change is in rain gear: I'm adding the ULA rain wrap since I don't want to commit to full rain pants.
I'm considering nixing the merino beanie and my rain shell in favor of a Mtn Hardware Transitions jacket. I like it because it is a better layer for hiking in, and the hood for sleeping in makes the beanie irrelevant.
2 big downsides are that it isn't really a shell and I won't be able to wear it over my down sweater if I needed insulation and rain protection. But I figure in that case, I'm either camped or hiking, so I've either got shelter or I'm not wearing the down.
Thoughts? My other option is to take a goLite phantasm, but I feel like the transition jacket is way more flexible, save the downsides above.
This all gets my packed clothes in the 3 lb range, and I seem to be having trouble getting any lower than that.
Thanks again for all the great advice folks!