Having the tank so far forward of the CG would make it fly noseheavy, thats why I am near the 130mm mark (which is the farthest recommended). When the fuel is full I am on the middle of the CG which helps out with pattern stuff, but it still allows me to 3D comfortably and when the tank goes to around 1/2 tank it really like to be hanging around with the tail down.

One thing I don't like is how it can snap if I'm not careful on how much elevator I input. It just is an Extra and they all snap.

I maxed the throws on 3D flight smokey, but I really only use the full deflection when doing slow maneauvers like harriers, hovering, rolling harriers (still working on), but it's flies great.