Fair point swh,
Putting this together and if I have this correct, it seems these checkers have to be licenced and hold a valid Class 1 medical. But isn't there a requirement to be current, as in 3 TOs and Ldgs in 90 days?
I guess HKCAD felt being current in the same job/role/environment (on any aircraft?) as those you are licensing is not important. I wonder over which course of the "fizzy lunch" that decision was made.......