Hi, firt time user here. Im looking for some help choosing a new bag. Want a waterproof shell for wet conditions (south east Alaska) Looking at the Mountian Hardwear Spectre SL 20 w the conduit sl shell and the Marmot Helium Membrain 15 w thr prop Membrain. My concern is breathability, MHW lists thr conduit sl as having 30,000 MVTR, can't find any specs on Marmot's Membrain. Any input wld b great. Thanks, David

P.S. I will be in a tent.Want the waterproof for condensation and as emergency backup.

Edited by David W (06/02/10 12:25 AM)