All Tiger 2's, because of the long tail moment will drop the tail if pushed down on, tank empty. Even with a full tank, it seems right at the point of dropping, but on taxi-out the thrust of the engine seems to keep the nosewheel firmly on the ground. I built mine from a kit, and it calls for the battery to be mounted under the fuel tank, obviously to help with the balance problem. It's a great flyer.
George