Quote Originally Posted by kd7eir View Post
3600mm/min has been my normal speed for a very long time. It's just in the past day that I noticed the divots on the bottom of the prints. I guess it could be new filament, but I made a few prints with it that did not have the divots.

I have plenty of patience to wait for a print to come out nice by printing slow. I think I'll experiment with some slower speeds and see what develops.
Looks like either your nozzle is too close to the bed or you have some over extrusion on your first layer. Could also be a bit too hot extrusion temp.