I had a situation a few years ago with this.... Hawker 125 pilot with many years experience on all variants. Then I was offered a job on the 800 XPi. with Collins Proline 21 avionics. I had not flown Proline before. No amount of reasoning with these idiots could convince them that it was the same aircraft and after a couple of sectors the avionics would be history! The job was lost. I went on later to fly an 850XP with Proline 21 after a couple of sectors. Doh!
How have we become slaves to such idiots?