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It's not reasonable to assume that it would add 15 degrees to all bags. Every bag is different, and the ground (snow? type of pad insulation?) and amount of air flow makes a difference. Incidenta...
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It's not reasonable to assume that it would add 15 degrees to all bags. Every bag is different, and the ground (snow? type of pad insulation?) and amount of air flow makes a difference. Incidenta...