These mention a soft food disposer. Were they the first to have that feature after the stainless steel impeller machines of the late 50s? I notice that the 1050 model had a thermal delay to 145F for heavy soil washing, like the Whirlpool, D&M and some other dishwashers while the 950 just extended the wash into the first rinse period to give extra scrubbing like the run of the mill GE potsmasher machines albeit with the advanced wash system with a spray arm under each rack.