hmm, everything here is pretty much right, but one thing i haven't seen mentioned is cg... at least with my planes, when you have a forward cg, it rocks pretty bad, take it back a little and it is alot better... I think this is because the tail heavy cg makes it easier to stall the wing fully

the torque and p factor are over rated... when you have a 45 AOA, you barely notice the torque at a consistent throttle rate, and the yaw from P is usually offset by right thrust in most planes... I don't find that I need any consistent right aileron or rudder in a harrier... not that they don't exist, but I don't think it is a major cause of wing rock or something to worry about... usually its a mix of overcorrection with ailerons / bad expo/dr setup, and cg, that doesn't keep the wing evenly stalled

jmo...