I have not read all the posts on this but I am of the view that you push as soon as the wings are level.

I asked a similar question regarding the outside loop with the 4 point roll in the bottom 180*. JAS confirmed that you start rolling at the 1/4 loop and finish rolling at the 3/4 loop i.e. you do not have the pause ending at the 3/4 loop.

On this basis a 4 point roll is really 4 quarter rolls with 3 pauses (I guess like a 4 post fence with 3 gaps); and so 2 of a 4 point roll is 2 quarter rolls with one pause.

You will now get into arguments as to where the centre of a 4 point roll is - surely the middle of the inverted.

B