Cool video, sound is awesome! Not even going to debate what the sound is, don't care, it's cool!
My son is ready to build the FT Mustang and already has the spitfire and his only complaint...It's too quiet, when you look that cool you need to sound cool!
I told this story on a different thread, but I know a Korean War vet and he told me he could tell when the P-51s were coming just by there sound and he knew to take cover because they were coming to drop napalm. (Usually because he had called them in.)