The 0.000 value you see is the default value. You can run a manual pressure advance test and save the result here. If you do the automated PA test on ever print, it will use the results it calculated for that print. It will not save that value for any future prints. Doing the manual test once can save you a bit time on each print.
Keep in mind that the K value might change over time, especially for PETG as it sucks up moisture.
2 Likes