I put my tank in the notch in the wing LE. I run a Saito .72 so the throttle runs on the left side of the tank. The tank works good back there unless you do a 15' loop at full power. It will kill the engine if less than half a tank. It dosn't do it with the tank up an inch. My RX is under the tank. The battery is behind the servos. I had to cut a hole in the wing sheeting to get in in there, but no problems. I also turned the gear backwards.It helps the CG.
My engine is as far back on the mount as it can get. I had to notch the tank cover to clear the intake tube. This setup works good and I added do lead. The CG is 1/2" behind recomended.
I to am having trouble with hover.
The Pizzaz is currently on moth balls. I bought a Funtana thinking it would be a step up. It does track better for pattern type stuff, but it's not the tumbler the Pizzaz is. After 150 flights on the Pizzaz the airframe was showing some stress cracks. I thought I should retire it before it came apart in the air. Now I'm having second thoughts. I've got 25 flights on the Funtana and still struggling. later David