When I say all throttle positions I left out dead slow. Your plane is going to start sinking when it slows to a certain speed reguardless of what I stated above. I'm talking about level flight at full throttle, half throttle, and low throttle (til you lose enough air speed). Keep in mind it will never be exactly perfect as your CG changes somewhat as you use fuel. Did I start to ramble again? Sorry I like the plane and get to running the mouth sometimes.

Just my two pennies