Like most JM's mine came with a fantastic playfield, but faded cab. New decals were in order but little did I know what I was getting myself into.
I thought; "Purchase new decals and stick them on over the old ones". Wrong!
Turns out it's - Remove old declas, repair any and all damage, sand, sand some more, sand some more, clean, paint.......THEN install new decals! Anyway, the results are pretty good.
I did mess up on my very first decal (I'm sure you can find it in the pics) but after that bit of trial and error it went pretty smoothly.