Thanks Bill! My last experience at these temps was Denali.
I have been preparing for a cold and wet hike of course. So far I plan this layering system for late October.  I did end up picking up a beta Sl as I don’t have another pit zip jacket at this point I trust under shoulder straps in extended use for days. Maybe I should have gotten a whistler peak with the pit zips…time will tell if it wets out I guess.
is my interpretation correct that if a Gore-Tex jackets wets out with the pit zips open it’s no worse than a highly breathable membrane out jacket with the pit zips open? once the pit zips are open These materials are not provided enough pressure to move anything through the membrane anyway unless you’re talking about electro spun? so really the benefit is when you’re standing still and pit zips are closed – a membrane out jacket would benefit your ambient moisture better.
torso: Byrne synthetic base-layer/capilene sun hoody / alpha 90 hoody / montbell uL thermawrap vest / katabatic wind shirt / montbell plasma parka / beta Sl with pit zips
Head: alpha 90g Bernie and wool puff
Lower: prana pant / alpha 90 pant / montbell trekker pants / event MLD gaiters
hands: capilene liner / montbell 200g fleece mitten with flips, MLD event over mitten
Feet: Â Injini wools / alpha direct 120 sock / rocket gortex socks / extra Injini sock / altras (not gortex) and micro-spikes.
I have debated swapping the parka for the EE torrid. But temps in late October should be a bit colder then the torrid…I get cold easy and EE items are Saftey rated not comfort rated). but I get much more warmth on the clo from the plasma and given that the parka is typically only out of the bag under the shelters for the soakies I am justifying not buying the torrid for this trip…? the synthetic vest is a slightly insurance policy for active pursuit.
Actually I have never backpacked where the use of shelters was mandatory. I prefer a tent . It sounds kind of terrible to sleep next to strangers without much wind protection in a place where everyone is loosy goosy with food. The backcountry office recommended a bivy to avoid drafts (wind screens are not up in october) and mice.
So here I am packing my for two scenarios for  sleeping ( tent I’m carrying for no other reason then a shelter in place back up a- solplex or duplex depending on weather week of) and a bivy. Jeez
sorry if this repeats myself. I debated switching my trip to the Grayson highlands to avoid this triple shelter option mind quagmire.