When the playfield is up, and you are looking at a bank of targets from the underside.
Shopping my MM and reinstall the three red targets. Playfield down, they were Top, Bottom, Mid. Raised the playfield and inadvertently switched the top and bottom, mistaking the top for the mid. Lowered playfield, tested targets and now I had Bottom, Top, Mid. Anyway I think I made one more wrong ordering before sitting down with a pencil and paper and figuring it out.
Felt like I was playing Mystery Spot Multiball on TSPP - "I'm all confused," D'OHDan