If you're talking about actually simulating an aircraft, then it is the ultimate test. If you're talking about something else, then it has less to do with it. Since this is in relation to 2d vs 3d panels, your point is moot because there would have to be otherwise identical models, one with 2d panel only, 3d panel only and both then a clear preference for said airbus pilots in purchase to the 2d panel only model. In actuality, this is the only game in town and you claim that airbus pilots using it validate the choices made by the aircraft designer - specifically the choice not to model a 3d pit. Yes, we do too. I call that contracting, not working with. It's like me paying you to install my bathroom. I picked the suite and paid you to put it in. Afterwards, I repainted the ceiling. You worked for me, not with me. Working with would be like Javier and Anton or Goran and theo's relationship - they build with lots of feedback between them, a change is needed, they both work together to fix it. That's what I think would do wonders to supplement Peter's skills.