[pavel_lishin]

> The design is impractical anyway

Nah, you just need a miniature collider inside the board, manufacturing more anti-matter as necessary.

And obviously, it would be powered by annihilating matter/antimatter together, via a small Mr. Fusion at the back.

[amalcon]

They could just use a compressed-air ballast tank. That would certainly be simpler than a miniature collider, and the explosion risk isn't that bad compared to the rest of the device.

[enko]

That is a good solution. You should patent it! METHOD FOR DYNAMICALLY REGULATING BALLAST MASS ON ANTI-GRAVITY FLOATATION TRANSPORT DEVICE