Changed the filament feed mid print and no more chafing. I normally use that kind of spool container for all printers, but was lazy. Lesson to be learned: don't be lazy.

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Print finished fine, took ~27 hours. So the full 23cm is usable on the MK2Dollo build and seems no drastic problems with quality. There's the quite prominent ringin on the left cheek, but not quite sure if it's due to the filament chafing or just regular ringing... Also there's some small differences in layer coloration, which is probably the filament (Amazon basics Gold PLA).
All in all, happy with the result.

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