I have and i have gotten emails taht say this and only this:
1 is up and 0 is down
They also suggested in other emails a setting that didnt even work at all.
I went for 2.73s to 4.10s, and i got the speed cal because of the gear wearing out issue and because the guy who owned my car before me did white faced gauges the speed ometer was off by 5 mph fast. I wanted to correct that! And now My speedometer is no where near accurate. 30=30 when doing 40 it reads 40 when doing 45 it reads 40 when doing 60 it reads 53 and when doing 65 it reads 54. I have explained this to them and they just give me some number that doesnt work. I will try again i guess.