I would be very interested to know what type Ghengis is refering to, I am instructor with a very large range of experience from vintage to high performance aero aircraft and would be very surprised if I would not be able to cope with almost any aircraft after a short check flight and would find it strange he cannot find a number of similarly experienced instructors who could do the same. On the question of the checkee taking command I actually back right off the instructor level, turning up without headset/chart and asking if they have checked wx and notams (Headset/chart actually being in my car and having already checked wx and notams) if they have not done this I hand them my laptop which has a Dongle for internet and tell them to check this, pointing out that this is their job as P1, the rest of the flight continues in much the same vein - I will only step in if dangerous/illegal, with the debrief afterwards pointing out things that would have been done better.