Motorcycle that doesn't fall

So at low speeds, the forks' slant is increased, bringing the point of tire contact ahead of where the steering axis intersects the ground, creating negative trail. Small movements of the steering can correct for the tilting of an incipient fall by using the leverage the trail affords to bring the bike back to the upright position.

I was wondering why this would not work with conventional positive trail, if you reversed the direction of the steering response to an off-vertical tilt. My guess is that this would work for a stationary cycle, but for steering one moving slowly forwards, countering the centrifugal effect would require movements in the opposite direction to those needed to perform the turn.