I hit the strings very hard . I can't see how it could sound good for metal any other way ! It does suck for tuning though, especially in drop tunings, which is why I'm switching to heavier gauge soon
I actua.ly bought some of theose new dunlop Strings which are Like all "ughhhhh Im brootalz strings UGHHHHH"
They are excellent for down tuning (drop c Sharp) They don't go BAAUUUUUUOOOOOO like others strings in around that gauge!
I got 0.74 strings for my baritone (I play drop-A and standard-B and used to have 0.60 for that). SO MUCH BETTER gmfsdkgfds. It feels and sounds awesome compared to the 0.60s.
Well my advice for down tuning (C or B tuning) is buy a long scale guitar (26.5"), this way you don't have to buy huge ass strings (they loose attack) and the sound is always good and tight!