Spot on Shawn. I had a peripheral input, and aside from your observations, it would have been too expensive and heavy to incorporate all the discrete requirements for Cat A systems separation, never mind overcoming all the other limitations. What it HAS done, though, is to act as a proving ground for the 429's dynamics, and to highlight areas for improvement elsewhere; fuselage,cabin, eqpt config, maintenance access, system reliability etc. Pity they do not (yet) have a wheeled version available for the corporate market - A109E may have eaten their lunch on that one
~ vfr