the diver will only sound dark in a dark sounding les paul
I had it in a brighter one (japanese, probably african mahogany, maple top) and also in a quite dark sounding les paul (brazilian mahogany and rosewood, imbuya top), and it sounded great in both cases and not muddy/muffled at all
the bright one also had a miracle man set and a cold sweat set (among other 10+ pickups)
the dark one had a painkiller, a miracle man and a bill lawrence
the miracle man actually sounded darker and more bass heavy, the painkiller got a bit nasal and the lawrence made it sound like a goddamn strat
the holy diver was actually the most balanced in that guitar
also, you have a quite bright amp
the holy diver is more open sounding than the bomb