AC/DC uses part #090-5032 (22-1080) which is a fairly common/standard sized flipper coil in newer Sterns, not the smaller coil that I have pictured above that was installed in Metallica from the factory. I ended up swapping out the smaller coils for 090-5032's like are in AC/DC. I don't have any 090-5020's (23-900) at the moment to use, but I will call Chas on Monday to figure out what the deal is. It may be the case that they want the smaller coils in there, which would mean that the coil itself is mislabeled and the manual is incorrect...doubtful.

After installing the bigger coils I added more pitch to the game (it was slightly shallow due to the ramp difficulty) and it seemed to play much faster after these changes. More flow to the ramps as well when made. Disabling the orbit up-post for now also helps with the flow and makes the skill shot just that, based on skill.

Thanks to everyone for checking the game out!

John
D&G Amusement

The coils that came installed in the game were not actually 090-5020's. They are physically smaller than the 090-5020's that I have installed on my LOTR sitting next to Metallica. They cannot both be 900 windings of 23 gauge wire but be different sizes. As such I believe the original coils were incorrectly labeled as 090-5020. The flippers were noticably stronger after I installed the 090-5032's (which were used only because I don't have any "real" 090-5020's on hand right now).