I know most everyone here is on-road - but I wanted to point out that the software works very well for off-road as well. I have tested with the 60a and 120a with motors from 10.5 to 17.5.
As it has been described with the HW document, you need to be careful how you program the supercharger or "turbo" feature to kick in, so settings can be slightly different from person to person and track to track (depending on traction levels). But it is a great tool with an extra kick you can notice.
And I recently ran a some heats using a 13.5 in a 10.5 class turning same lap times and speed down the straight.