I've noticed that when the AI contact ground to request startup they insert the current QNH between the callsign and 'request startup'. For example 'Speedbird 7013 1026 request startup'.I first noticed this during a long taxi from one side of Paris Charles-de-Gaulle to the other, but it occurs elsewhere too. It might be just non-FAA airports, as I haven't flown in the US yet.

Thanks Ian,That doesn't sound quite right. I'm sure the real world controllers on the team will confirm or otherwise. If wrong it'll go on the 'to do' list.All the best,John

i've asked our expertjd