Not sure about the bag, but it may be most sincerely dead now. Call WM.

For shelter, have you thought about a poncho tarp kind of system? Seems like a good use of weight *given the conditions* on the PCT. If you only had 3-4 rainy periods on the whole trip, a 7-11 ounce p/t might work.

(Then again, it might never pitch properly in the soil conditions you encountered.)
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--Ken B