I am about to add a Flintstones to my collection but the spinner at the top left of the machine when it starts multiball only 2 balls come out and the 3rd gets stuck until the machine goes in to ball find mode. Problem is the mechanism is 1mm lower than the playfield. So the weight of the last ball pushes the other 2 out but the last ball fails to leave the unit.
Can it be adjusted? Just before I buy
Here is the picture of it.