I don't currently have any issues with tank setup. The reason for my question is for design ideas I'm toying with in my mind. I'll be converting a Sig Kadet Senior to a tail dragger along with some other mods and was considering moving the tank to the CG location and using a larger tank for duration. I figured by moving the tank to the CG location, all that extra weight would have less effect on CG shift as it's burned off. The area normally occupied by the standard tank could house the battery and receiver if necessary. I could use a pump if it were needed, but I'd rather not if I don't have to.