A supervisors pay based on a % of what they were making as an hourly? Say you were a top-rate air driver at 19/hr (a couple years ago), you could easily pull off around 20 or 21 as a PT sup.
Lets say you are a FT driver making 29.50/hr. If you were to choose a FT on-car sup position, you would likely not be making less than that and maybe 5-10% more, no?
I do not see why someone would call his/her payrate BS -seems feasible at least in theory.