both the holy diver and the miracle man worked great with the cobra
the miracle man sounds darker, tighter, hotter and more dense and focused
the holy diver sounds fuller, more open and smoother, much more versatile
the painkiller-7 worked really good too
a bit like the miracle man, but rawer, less bassy and a lot more middy
so if you want it to sound dark and heavy, but smooth, go alnico
the cobra is already dry and tight, so it will never get flubby or loose in any way
if you want it to sound a bit smoother, you can check my cobra->dragon mod thread on harmony central
pretty easy mod