I'm with Turbulence. I don't have the Mueller tanks but I changed my sequencing to get the Cg forward by draining the aft tanks first into the large forward tank. My UAT is on top of the 40 oz main tank. That's the remaining 44oz under the canopy after 2-3 minutes of flight. The trim change is minimal. I've flown probably 50 or 60 flights that way. My Cg is about 1/2" aft of the hatch line no fuel. I think something else failed.