Good job! Toasty at 30F with 5 oz CS? So maybe you can do 20F and be OK? Which coincidentally is exactly how it is rated, if everything is working right.
For reference: AHE Jarbidge is 6 oz, so no wonder folks are so warm in it.(EDIT: I meant, of course, uses 6 oz/sq/yd or 6 osy Climashield XP or Apex, 1 osy heavier than what OP used)
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