I have used Focal for some time now and I don't think I get better results with the lenses calibrated.
Using a 250 Watt bulb in my studio flash to light the chart (inkjet on matte paper) and hope that soon the flash can be used to get even more light on the chart.
Program was very unstable and could not complete one calibration anymore. After sending logs to support which did not resolve it, in later versions, I discovered that my standard setting of writing to both cards was the cause.
I hope they discover the possibility to set MFA remote on the 5D MKIII so I don't have to touch the camera and change the MFA manually.