I was thinking maybe my nozzle temp is way higher than I think, but it looks like it's not. I kept lowering the temp until the titan aero started slowing down or making noise. Got down to 150 C! That thing doesn't give a crap hah.. I'm pretty sure the stock extruder would be mad. I also used a meat thermometer to get an estimate. When I had the nozzle set to 150 C, my thermometer read 122 CC on the outside, and when I had the nozzle set to 210 C, I read 180 C - not a good measurement I'm sure, since the contact area is small, but that shows it's not sky high at least. And I already verified the bed temp is accurate. Maybe I'll try different filament, or just aim a desk fan at it to simulate part cooling for now.