We only have to tune the L parameter we dont touch the K?
Also, I use slic3r: I have retraction turn off, also no retraction in formware. Im printing a hollow cube to test how the corners comes. I have tried L 40,50 and 60 I dont see improvements (what I see are corners bulkie, a common issue). What Im observeing too is that I use a skir in order to prime the noozle. When print starts, the extruders gets crazy: It overextrudes a LOT at each coerner and underestrude in the lines of the sides of the cube. Then I see a lot of new activity while priting the solid bottom of the cube. The after that the walls are printed, I can see something is different in the extruder way of moveing but cant see a real difference in the corners. Wich range of values the L factor takes, and what about K? should I set the K value too?