They also come in the things like the solidbody Ibanez Artist AR325, too which is pretty much the opposite of a hollow guitar on many levels. I don't suspect it would be in any RGs though but I may be wrong. The Super 58s may only come in Gibson style spacing more aligned with the Artist and the whole Artcore line.
My metal friends just don't get me with my like for vintage gear. It's not that it's vintage in this case but low resistance stuff like the Super 58 or late50s-'62 Gibson PAF and Duncan '59s are actually good for hard rock/punk/metal, even djent. They have the vintage sound but can do more. That statement is for another thread though.
But that being said I still want to own an X2N, Super Distortion, and Duncan Black Winter. They are for sure great for harder and heavier but the vintage stuff can do more moderate styles of music and with right settings get the loud stuff, too. If I was just a metal guy and nothing else and wanted to sound like Metallica I would shell out the extra few bucks and get a JH EMG set and call it a day and then focus on amps and effects and actually playing the guitar.
