Yesterday I picked up a mid to late 80s (84-87) Stratocaster Contemporary MIJ. Really fantastic guitar, but a few things may seem inconsistent to me, but I hope that it’s just a lack in knowledge on my part. So here’s what I know First, Serial number is E697319 but when I removed the neck, the code on the inside of the neck says K ST-562K. And on the guitar where the neck made contact the code says 562D with a K also stamped in there. Does the K stamp indicate the beginning of the serial number? Because the headstock starts with E. Second, after removing the neck and the metal plate I noticed it looked like the guitar was painted around the plate? Or maybe a second owner painted it a more cream color. Mine looks a bit darker tone than most white/cream color ones I see online, so that leads me to believe it was a second time around paint job? Third, I know a lot of these were produced with fender marked Tremelos. Some more Floyd Rose and somewhere Kahler. Mine is a Kahler made in USA. It doesn’t say Fender anywhere on the trem, or Floyd Rose. From as much research as I can do, I’ve seen maybe a couple that came stock with this one. Just want to get other opinions on the trem if they’ve seen it come stock. Thanks are my questions. I’ll post some photos as detailed as I can get them. Thanks so much for all your help.