Quoted from pdmarsh:After initially launching a ball, only on rare occasions does the ball travel the full upper arc and come out of the chute and pass by the upper flipper. More often than not, the ball goes down the chute just before the last chute. I have not been able to figure out what determines whether or not the ball will travel the full arc. All things being equal, it seems like the ball should always make it through the full arc.
On mine which had the latest ROM, it seems the original intent is for the ball to go down the 2nd chute and to return to the right flipper. You must plunge it hard enough and have a spring which is resistant enough to make it up the ramp on a plunge.