If I was flying around in a F50 with 100 pax on board, I would have ordered the Cheeky Girls in the cockpit to get an in-trim situation at least during approach&landing
In our company we permit ATCOs on the flightdeck, but this is always arranged via flight-department. In return we have had very nice receptions at the various ATC-units in Europe. It works great for enhancing mutual understanding.
Greetz, QTA