well if they got rid of the HD term, the process of preload is still the same at my state...
all they do at the HD station is to sort the belt and put your stuff on a pallet. we come in scan and load/sort our own packages into our own vehicles.
i know ground ops are different because of bulk stops and what-not, but at HD it's been like that since the RPS days in my state
also, someone here states that the contractor gets the payment for the preload like ~.25 cents per box or something like that. that fee should be passed on to the driver who's humping those boxes into their vehicles