Well, you know this, I guess I did'nt explain it enough.

Immelmann
Start wings level as if executing a full loop and when you reach the top, immediately half-roll to the left or right, opening the throttle to regain speed.

The Reversal
The Reversal is another method of reversing your direction but recovering at the same altitude as the start of the manoeuvre (unlike the Immelmann and Split 'S').

Turns down wind in a strong wind with a stock zagi are hard. You loose a lot of air speed.

Bill