Ah, musing, yes. And Zond left out the ATP-CTP. The FAA created it under pressure from Congress after the Colgan crash in Buffalo. It was easier for them to say everyone must complete it but I think it's a waste of time for military fixed wing pilots and foreign ATPs. It's meant to bridge the knowledge gap between flight instructing in light airplanes and operating transport category jets. So it would be cheaper to just get the FAA commercial and let the regional pay for the CTP and ATP. Not sure if you hold a Canadian ATP if you can back it down and just apply for the FAA commercial.