Air Disc verses Drum-brakes

Not here to chat much, but I thought some of you might find this info of some value.

Last year the owner Father and Son bought 10 Freightliners with air disc brakes over my rather strong protest.
They were both sold on the high wear factor and service by the sales force. Told the average mileage before needing
pads was 400 to 500,000, {BS}. So far that isn't happening the best we will see is about 220,000 average. And so far
I have had to change out one set rotors and pads, plus...

Air Disc verses Drum-brakes