Here are some simple rules I developed over time flying F3A.

Rolling manoeuvres:

Always opposite rudder to aileron input when rolling from upright to inverted. Always same rudder input to aileron when rolling from inverted to upright. That is all I have to think about when I am rolling including rolling loops and circles.

As for flying rudder input is obvious when flying upright. If it isn’t then you’re not ready to go to the next stage (buy a sim). When the model is flying inverted I simply concentrate on the inboard wingtip and don’t take any notice of the nose or tail. I just simply move the rudder stick in the direction I want the wingtip to move to correct for yaw. For example if the model is flying from left to right inverted and the nose of the model is coming towards you I look at the inboard wingtip. In this case the wingtip will be dragging behind (so to speak) and to straighten the model up I want the inboard wingtip to go forward so all I remember is to move the rudder stick in the direction I want the wingtip to go. It doesn’t matter if you’re flying right to left or left to right or to you or away from you.