Hey, folks. I have recently acquired an almost mint condition Mustang replica by Thunder. I know that Thunder is a Suzuki marque, but I had a couple of questions for anyone who is familiar with these guitars: 1) What is the timeline for them? (It is a Made in Japan guitar according to the neck plate; furthermore my buddy bought it for me in Japan.) It has no serial number (even on the pickups), so I can't find a date (just like in high school). Can I use the pots to date it? (I will say that there is no cloth wiring, and the wires used seem pretty slender.) And 2) Any idea what might be causing the pickups to crackle when I strum "with vigor"? (No, it's not the amp or the cord; it's definitely the pick ups. They send a loud snapping sound through the amp when I forcefully tap them with my pick.) It's a really solid-feeling and beautiful guitar, but the pick up issue is driving me nuts. I don't know how to trouble shoot pick up problems. (Again, yes, I'm sure it's the pick ups. It's not the cord. It's not the amp. It's not the jack. It's the pick ups...or maybe...MAYbe the switches.) Are there any experts out there with advice? I can throw some pictures up if you want.