It's a pair of diving loops back to back with a half aileron roll in the middle to stay upright. basically rolling out from inverted after the first 3/4 loop. It will look like a figure 8 on it's side. Like this: OO but joined in the middle. This allows you to take the fight into the vertical without covering a lot of ground. You can throw a clover leaf in there too to diverge in the horizontal. At the top of one of the loops. Better yet, even at the bottom when the Jug is smoking hot. Not sure the Jug was the best climber in the world so you can take your chances in the Dora. She should be lighter but plenty powerful with the Jumo. If you get slow, stretch it out with longer head on passes and keep your speed up.