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I've mostly gotten the quality to where I'm happy except for whatever it's doing to the bow of Benchy. Still some stringing but I don't expect that to go away completely with TPU. Hatchbox TPU, been lowering temp, lowering print speed, fine tuning retraction, etc. I can give exact numbers if needed, but if anyone knows what to adjust specifically for what it's doing at the bow that would be great.
It'll cause more zits and the like, more stringing, don't know that'd 100% cause the issue but certainly won't help.
I just did a round of nylon last week which is also super hygroscopic, bag's like at most 8 months old but seal was intact. Even printing out of a drybox with fresh desiccant I noticed more stringing and occasional blobs + nozzle buildup over the few days (Was redoing my hotend so I inspected it, no sign of nozzle leaking), can definitely make overhangs worse.