Unfortunately I don't think you will get that tone from the cab sims that you are using.. it is raw and cranked and layered and probably a lot of sm57 in the mix plus a room mic. (much like you already do) I think those Gibson dirty finger pups bring the bite and the gain is either modded Marshall or Mesa or hell, maybe both amps blended for all we know. But mostly, it is just how awesome Sykes is as a player. I noticed a bit of his influence in your lead playing with some of the fast alternate picking runs you do. I mean, who doesn't like Sykes? Monster player and monster singer and looked cool to boot! Oh, and I LOVE the big ass verbed out sound of those drums!! 80's drums baby. The best. Not like that dry clickie shit everyone goes with now. That's why the material sounded so much more epic.