Hi,   When buying the UM3 I was excited for the NFC function. I thought: 'Wow, I never had to make dozens of test prints to find the correct settings for the expensive UM-Filament.' Right? Ultimaker knows their Filament and their Printers and will set the settings right on the spot to get P.E.R.F.E.C.T. results! Wrong! Why do I have a fancy NFC chip functionality when I get the same settings for every UM-PLA Filament? I have good results with the UM-PLA Green and White but e.g. Black is horrable with underextrusion (I think that's the cause of the problem). I have massive stringing inside of the object with every UM-PLA and the infill is very holey at the defaut 70mm/s. I had to drop it to 30mm/s to get a propper infill.   What are your experiences? Is there something wrong with my UM3?