Seeking help to acquire Multiball on RBION. Do I advance to Multiball through under the shrunken head shots? I can advance to lite lock, maybe by coincidence/accident, and I thought I read somewhere that balls were then to be shot to the right ramp? When I do this, it doesn't register a locked ball. Help with the confusion!

Thanks. When I can start locking balls, should the shrunken head tell me to shoot the right ramp? Also, at what point during the game does the magnet under the shrunken head hold the ball? Still putting games on it but there are still issues. Also the idol magnet doesn't seem to be working OR registering idol hits. I'm guessing opto?