Hi,
I have just asked Colin to try this and, for him at least, he was able to fly at burner below mach 1 whilst in a very hard turn. He did nearly black out though and that's the point. In hard turns, where lift is needed, the slats auto open. This creates an immense amount of G force (1G approx). This is what causes the blackout.
If this is what you mean, then it's right.
As well, with three (3) actual, verified Phantom pilots (one of whom flew F-4F's) we're pretty sure we're getting it right. If you wish, feel free to take it up with them but if you check published materials (we will be releasing a manual soon), the performance is pretty much on the numbers.