Back to back prints so that may play into it, good point! Haven’t used it for a day so I’m kicking off a calibration and then printing a five batch to see how that looks.

For consistent preheating are you meaning like preheat the bed and hot end and then run the calibration? I just moved to a K1 Max from a CR-10 that I paper leveled so I’m very new to auto leveling and tricks for that. Thank you for the feedback!