I agree having the tank on the CG is preferable, but it requires a major rebuild of the airplane. It is not that difficult to move it back a bit into the next bay rearward but it will still not be on the CG, and will require a pump. My Focus Sport was easy to set up with the tank on the CG but this one is a major effort. I even looked at putting the tank in the canopy. I'm not looking for the best-trimmed plane, but rather the best I can do within the constraint of sticking with the current tank location. I know it is not ideal but...