[pct-l] 20 degree vs 30 degree bag for Oregon

[Tow, Doug]

If anyone can take a short break from their Can't Wait To Walk jitters,
could you weigh in on the likelihood of a 30 degree bag being sufficient
for the Oregon sections hiked in August?  I have a 20, and see
opportunity to go a bit lighter and a lot smaller.
 
I won't be carrying a lot of extra layers that I could wear in the bag -
just lightweight merinos, maybe.
 
Thank you for your kind patience with us, the woefully uninformed.
 
Doug
 
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