I'm planning a 2019 SOBO attempt ASAP when the Mt. opens and still working on finalizing gear. I am looking at Outdoor Vitals OV-Light or Mountain Hardware's Bozeman or Hotbed. All three are in the 0° to 15°F range. I do plan on using a Thermo liner. I know there are better pics out there but these are in my price range and around 3lbs w/out liner. Thay also compress to half the size I'm using now and 1-2lbs lighter. Also think I can get rid of my poncho liner by switching to the better bag. Does anyone have an opinion or used either bag? Any advice or suggestions would be great.