Andrew S ,

I would suggest you revise thebalance (CG location). Adding weight to the back as one suggested will move the CG toward the tail will be opposite to what you are trying to accomplish.

If you do not have a specified CG location, I would set it to be between 28% and 32% of the wing chord at the fuselage measuring from the leading edge of the wings. Adjustments could be done later by observing the flight behavior while flying.

Best regards de Zor

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