Why these numbers
Polymaker PolyTerra PLA starts from Bambu's PLA Basic reference; Polymaker's published specs are overlaid where available, and everything else stays at Bambu's calibrated default.
Matte filler; cardboard spool; lower layer adhesion than standard PLA
Treat these as a starting point — run a flow-test cube and Bambu's Flow Dynamics calibration after import for the last few percent.