Hi, Longtime reader, first time poster. I recently got a deal for a brand new Marmot Couloir 0Deg Long and a brand new Marmot Pinnacle 15Deg Long 800 Fill Down bag for $500 total. It was a great deal for sure, but I'm beginning to wonder if the bags are redundant seeing as they are so close in temperature ratings. For those of you with more experience on the Cascades--should I sell one of these bags for a -20 or if I plan to climb Many 14ers and possibly even Denali at some point in the future? I was thinking I might keep the Pinnacle for 3 season backpacking and getting a -20 for summer and winter mountaineering.
