Actually there was not much rolling to do.. I think it's more about the torque effect (not the prop-wash) of the inline vs the radial. I vaguely remember in one documentary that a P51 pilot mentioned that if you
wall the merlin throttle it could flip the aircraft over while still on the ground, he over-emphasized gentle throttle application - such was the power of inline torque effects.
The game merlin gets very touchy at slow speeds where as the DB801 is quite tame and easier to control. I've seen many an
unsuspecting Spit pilot plough into the ground behind me...
It is controllable, but seemingly not at the FW190s turn rate at stall speeds.
