Driving me nuts this. First attempt at a flexible filament and just can't get extrusion right I am running at 210 extruder on a 45C bed (no bed adhesion problems with print bite) and am getting extreme (like 50% at least) under extrusion. (this is on the original stock printed extruder not a titan) Slowed print speeds down to 1800mm/min, but even on a half speed first layer it's still causing problems. Tried calibrating e steps but I think it's jumping as even with E steps 50% more it's no better really and I am pretty sure it is jumping on the hobbed shaft even during calibration. (of course it's hard to tell as you can't hear it like you can with hard filaments). So then I tried fiddling with the extrusion multiplier, even with it wound up to 1.5 it still seems no better so I am sure I am skipping on the extruder. Then finally it jumped out from between the motor shaft and the bearing (so in front of them) The purge script runs the extruder pretty fast, should I slow that down ? What about Extruder tension it's wound as high as it can go for Edge/PLA but is that too high for flexi, or two low ? This isn't a retract heavy print but should I even be running with retraction on a flexi ? Does anyone have a magic profile they can share so I can use that as a baseline for my BB ?