hey John, as far as I, know the MCFA A/C truck still uses a controller that is proprietary to MCF products.
And to call the micro-command system as Cat only is kind of a little incorrect, (even though the equivalent Mitsubishi product made during the same time frame used GE panels) as a VERY similar system was used by Daewoo for a few years too. I know the guy that designed it and owned a number of the patents was on forkliftaction a few years ago, and if I remember correctly, used "Pike" (or something close) as his "handle".