It seems that in fact A2A played quite a small role in the overall Mustang coverage(?), since there are ten very different cockpit models and ten very different external models, and Scott Gentile mentioned that A2A only worked on just the internal models for two of them (Strega and Miss America). I have to say that the T-6 models look very much like the A2A FSX/P3D model, so I wonder about any involvement there?
Over the span of the ten Mustangs included, the POF P-51A can be considered "stock" (despite numerous modern changes within the cockpit), and 5 of the P-51D's can be considered "stock" (despite numerous modern changes within the cockpits) - of course none come close to military stock wartime Mustangs, but through those models provided, can easily provide a very accurate base for perhaps 120+ of the P-51D/K's flying today. "Miss America" and "Goldfinger" have some distinct external modifications for speed, while "Strega" and "Voodoo" of course have some very radical modifications for speed.
"Man O' War" sports two Spitfire mirrors, as the real example does, and "Dolly/Spam Can" sports the dual VLR AN/ARA-8 antennas on the spine, as the real example does (it's missing the AN-104 antenna below the nose/cowl, as the real one also doesn't have it fitted - according to someone I know at Planes of Fame, they had it fitted briefly, but there was a problem with the mounting not being secure enough and they were forced to remove that antenna mast).
I've noticed in the latest video that some of the views of the Mustangs were shot at earlier stages in development than others, as I've noted some things being corrected/changed about them from one shot to another.
As someone who has spent well over a decade deep into all things Mustangs, especially those flying today, I really appreciate the level of attention to detail in depicting each example individually accurate, with so many details I've come to know those aircraft by. For most Mustangs flying today, I can identify them quite quickly just by a photo of the cockpit (even without the registration on the panel), as they each often have their own character and individual detail traits just in the cockpit, and this product captures each one incredibly well! Having watched the old Jeff Ethell warbird checkout videos so many times over the years, including most importantly the one featuring the P-51D "Man O' War", I was ecstatic to see how accurate the cockpit has been recreated for that one in particular, down to each detail of the panel, the old radio stack, the Imron grey primer, and best of all the British-style spade grip - which is entirely unique to that one particular Mustang, and it looks exact to the real thing. It has the only stock panel of the P-51D's included. It's amazing in itself, the wide span of vintage (1960/70's) to modern avionics throughout all ten of the Mustangs, so that each one is spot-on the real deal (not to mention the ten different T-6's, ten different L-39's, and ten different Pitts biplanes, each with their own individual cockpits and types of avionics, instruments, etc.). There was a butt-load of work involved in putting all of this together!
I was originally excited about painting the D-models when the product is released, but I'm perhaps even more excited now about getting the chance to put some paint on the P-51A!
Also, personally I couldn't care less about the racing aspect, I just want the planes!
(not to say that stinks ! ) 
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