Quoted from PinballHaven:Hey gang helping a friend with their IM (2010). The upper post will always pop up immediately on the plunge, regardless of left flipper press. Shooter lane switch is fine in switch test. They are on 1.83 and doing an update today. Anyone know if this was a code issue in the prior version or what else to check on this? No other switches seem to be closed in the switch test. Thanks in advance!
That skill shot was added in a later code rev: they are probably just running a version before that was added.