Okay here we go. I put things back together and started calibrating again. Test cube: Test Cube A little elephant foot action, some gaps in the top layer. Then a benchy: 3D Benchy This is the worst side, odd dents, seems like an extrusion/temp issue maybe. The Mini Torture Test (https://www.thingiverse.com/thing:2975429 ) torture test Not great, for comparison here is one from my Anet A8: alt text Plans: up retraction to 6mm from 4mm AND to move this to a calibration thread. Thank you all for your help!