New member, but was a reader of this thread before ordering. Got my Diablosport box a couple days after ordering it mid last month. Works well, feels more uniform front to rear where I felt the OE file was mainly stiffening rear rebound, but wasn't exactly sure what the file differences were between street-sport-track, so I read them using the DSC software. Once I got that sorted (my files matched the DSC sport files except for the launch timer was cut in half) I decided to check and set zero on the shocks. Seemed like a reasonable thing to do, driver and half fuel weight, leveled surface and all, but after the zero set and reset board, my box also has a read / function error. It seems to still be working properly in the car and I have no error lights (2020 Challenger), but communication is a no go using the DSC software. I never attempted to change the file settings, just did a shock zero procedure per the DSC sport video.