P6 EPPM - Calculation of Progress Line when selecting activitiy's Percent Complete

Hi everybody.

when displaying the Progress Line within P6, and choosing to display it based on the activity's percent complete, P6 calculates the progress points based on the selected baseline - eventhough the setting cleary says "activity's percent complete".

This leads to several confusions for our customer, who is getting a progress line like the one below, where he would be expecting to see it like shown in the 2nd picture.

I somehow understand that you have to go with the baseline values, if you select to calculate your progress based on Duration%Complete. But if you choose another percent complete type like physical, Units or steps, this doesn't make sense. A baseline might be several months old (current planning vs. orginally planned), where the current planning is constantly changing compared to your baseline. So why would you choose to show your e.g. physical progress based on it? For that only the current scheduled dates are important, aren't they?