Hi John, welcome to the forum !
This is where a little scale model helps to see what the control surfaces have to do :wink: :lol:
There is no real tricks on how to remember where to put the rudder (well, that I know of :?: ), except maybe that when you start your roll to the left, the rudder go right, and if you start to the right, the rudder go left (rudder opposite to the way you start ).
After that, the best way is practice and practice again !
The most difficult part is to know when to release the rudder to avoid the aircraft 's tail snaking between the 1/4 roll. :!:
And if you give more elevator during the roll, you can have a nice roll circle