that long horizontal thing is the reverse polarity protection to keep from conducting if battery inserted backwards.
i’m so glad you got it solved!!! :+1: :+1: :+1: 
I think to fix pcb you would have to remove bezel, reflector, etc to re-align it properly.
But, if your shim works for you that is OK too.
Make sure tube o-ring seats properly now that you have increased total length by small margin.
Good work!
Great work guys!! If you decide to take the bezel apart be forewarned its held on with red loctite (permanant unless heated). But i’ve seen (online only) people use a strap wrench on it without applying heat and it came off with a little effort but they might not have had as much on theirs.
You might have to start selling shims tatasal lol!