Here are some of the Procal II screens used while programming the PCM:
Use this screen to select between the performance calibration and the stock calibration.
This screen allows you to select user adjustable parameters:
This screen allows you to adjust tire size in revolutions/mile. Made some speed checks against a GPS for a few settings and ended up dialing in 772, which is equivalent to an 82" tire circumference. The speedometer still read a tad higher (< 1 mph) than the GPS indicated speed with stock GY F1 Supercars.
Once you select "Save Changes" it begins loading the calibration; you can actually see the load progress now....
... until it's done. I don't know what that warn light indicates, but everything seems fine.
The green OK light comes on along with an acknowledgement that the "Performance Calibration" is installed once you cycle the key off, back on and select ENTER.