I've had it.

[Tudorp15]

Dunno.. I do force the tail down to shift my center of gravity, but only when my speed is low enough not to create more lift when you change the pitch of the wings.. If you are going too fast when you put the tail down, the change in pitch of the wing will gather more air than when horizontal, and the plane will try to lift off the ground again, causing a stall, then you nose over in a low level stall. So, you MUST be going slow enough to NOT lift the wings when you change the pitch of the plane when you push the tail down...

Originally Posted by Ancient Seraph

I think this actually is the problem. People try to force the tail down even when it still has lift. I'm guessing this'll make it bump up, crashing the nose into the ground.