What height off the ground are people installing g the NEMA14-50 outlet? I know there's a minimum suggested height (I can't find it right now -- was it something like 14"??), but I was wondering if there is a good height for the plug such that the UMC doesn't pull so hard on the receptacle and angle out due to the weight of the cable and its attached transformer box. I don't have my car or cable yet, but I was thinking of a plug height that has the UMCs transformer box just a little bit above the ground, still allowing a gentle bend of the UMC so that the rest of the cable runs along the ground to the car. That way the weight of the cable and box aren't putting as much traction on the plug, and they are slightly supported by the cable run on the ground.