I think most of the creosote was near where the cast iron sleeve enters the chimney. I did not see much at the top or the middle. My chimney is around 24' but the sleeve enters around 6' up from the bottom.
I run my stove pretty open a lot of the time. Mostly 2/3 throttle.I don't stoke the fire a lot, not needed.
Bingo! Higher than believed mc and msybe loading 10 minutes before bed and shutting it down. Instead load, burn hot for 45 min of so, then shut down. Deal with moisture at higher temps....IN ALL STOVES.
Really, you suspect wet wood contributed more than the chimney setup?