We are using the Fokoos version of Cura. Downloaded from the Fokoos site as it was missing off the USB stick. We are using PLA at a temp of 200 with a bed temp of 60. I would like to get a magnetic bed also. It was one of the few things I liked about the Prusa.
Yes we are using the “slide a piece of paper” trick to level the bed for all four corners.
It looks like we are doing everything correctly.