Help with custom Morningstar Tristar PWM setup

What's the procedure to download the configuration file from the PC to the controller? Can it be initiated purely from the PC side?

One thing the idea of the slightly lower set points would get you is more headroom before inverter cutout in cooler weather. But yes you miss out on the faster charging of the higher voltage that way. It does seem like your idea of a pretty high low temp cut out of compensation is a good one.

Jim