So there's this guitar I'm thinking of buying. I think it's a ?93? RG 570. The thing is on this guys picture, it looks like there's no backplate for the input jack. I own a 91 RG 550 and it has a plate for it. Did they change something between 91 and 93? Also it looks like it has a Les Paul style input jack that has the four screws and all that, and my RG 550 has a flush mount jack which I really prefer. Any help please. Are those feature standard on '93 models or what? Also It's green and I don't know if that's a 93 model color. It's serial number is F321267. Any and all help is greatly appreciated.