Joe
The top hat as a center maneuver should be as wide as it is tall. I generally enter it and count pull 1 2 roll 1 2 pull 1 2 3 4 pull 1 2 roll 1 2 pull. You have to use throttle management to make it work.
On the double I it should be more egg shaped. Pull a half loop. The straight sections should be as long as the diameter of your loops. So if you pull a 30ft 1/2 loop your straight lengths will be 30ft.
DEG