Only seems to have happened when I upped the retraction distance and speed, do you think it went too far back and might have caused some stripping issue? I also noticed on the spool that the temperature range is 205-225 (I thought that was a serial number at first) and the printer runs at 205C nozzle by default. Should I up it to about 215C-225C? On top of checking the filament for stripping of course.