Just you, i law darted my 39 at 480+mph all last night, pulled out every time, no blackouts and no lost parts.
yeah she can dive like a rock, but youll loose 50mph just geting the nose above the horizon,after that the E falls off sharply.
Start with 300mph, 500 mph dive from 10k and only end up with 5k-7k and 130mph to show for it.
Odd, but workable.