Wab, I can only get it to enter a spiral dive, which is exactly what also happens in WB, unless you pull more than 1 G. It's been awhile since I've 'tested it', but I will be happy to do so again over the weekend.
Dtango, try open and closing the throttle, while flying level. Sure, it will roll a little bit, but the ball will hardly move and there's no yaw.
I have to use the rudder more in a underpowered tricycle gear Beagle Pup 100 than I do in either AH or WB, where 2000HP+ monsters are modelled.
Daff