H0129 through H0161 display in metric no matter what, no option for display in imperial.
Good to know the theory behind it, but I'm sure you'll have a lot of customers scratching their heads trying to get the dial correct like I did the first time around. Might want to at least add a comment in the description.
H0135 was making a truck with (much) larger tires waver speed on the highway on cruise control. Set it at 75MPH and it would drop to 70 and then overcompensate. Adjusting it got it to hold one speed constantly. This was a 2011 truck IIRC.
Thanks again!