Well, I ran AKG 480s -> MBHO's -> Schoeps, and I can say without a doubt, the Schoeps are my favorite mics I've EVER owned! The AKGs AND MBHO's were too fatiguing in the highend with their presence peak, and the Schoeps are right where I like my mics to be! I know people say that they're dark, but to me they're very neutral, especially the MK41's! I just think that 90% of the other mics we use are too fatiguing in the highend, and have too much presence, but that's what we're accustomed to running most of the mics out there!
That said, I've NEVER recorded metal. The closest thing to that I did, was some Skerik stuff back in 2011 with my MBHO's, and they came out great, but I was almost onstage for that one. I'd look around and find some samples online before you go spending $2k in mics though. But IMHO, if you can afford the Schoeps, then go for it. My only regret is NOT buying the Schoeps in 1999, when I bought my first "real" setup with my HS graduation $$ to tape Phish, some AKG 481's and a Graham Patten DMIC-20 to go along with my Sony D8 Dat I got back in 1997! If only I'd had the extra $600 at the time and bought the Schoeps from the get go! Oh well, lesson learned and I'm extremely grateful for having [2] Schoeps rigs now