I finally got the re-done version of the open source controller and installed it in the car.
It doesn’t LOOK like much, but works well and is a heck of a lot cheaper than BUYING a new one.
I am still running the car at 72V, but now have the ability to up the system voltage just by adding batteries.
I think a 96V system might work well in the long-run, as I only need to make room for two more batteries, my charger supports up to 108 volts, and my voltmeter only goes to 100!