Sounds tits! Really gives a good idea how tight Randy's playing was on recordings. Jake is a serious madman though. It would be if RR had lived and we could've heard him play this amazing song at some point. Duet, cough cough...
I tried it man, Zakk's tone on those early ozzy records just sound absurdly high definition. Meaning if one tone has more anomaly content than the other, they can't be replicated. Zakk's tone was on another spectrum of sound.