Thanks folks. That's the info I needed. I agree that the small extra weight of 1/4 more quilt is the lightest way to go IF its cold enough to need something under your feet. For me I usually don't if its only 20F. Since the TX-250 has pockets right where my feet will be I'm thinking I could stuff my down jacket in there an basically extend the insulated area by about a foot by my feet.
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