@froop typical PA(K) factor calibration possibly a bit flow problem for PETG . assuming the speed external perimeter is bellow 120mm/S problem for PETG and assuming the filament is dry . aslo a bit higher temp probably
Calibrate the flow and PA(K) and make sure that slightly reduce it of measured
PA(K) a bit under than measured - my one is around 0.5 and i use 0.42-0.45
and flow as well my flow measured is 0.99 - 1.0 and i use 0.96
These are at boosted temp 255C/260C
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