I did some new extrusiontests : with the current rol of filament (2/3 full I guess) and with a new rol. Both Innofil. At 230 C. See photos for result : bad or very bad at low speeds 3 and 4, or even 3,4,5,6, and better at higher speeds. The test with the new rol of filament was completely very bad (the test on the right on the picture).
We also have lots of times a thick bulge in the filament; see second photo.
Also grinding of the filament hapens often.