I can growl like Tomi from Amorphis did (I practise that since 1996!) and Thomas AG Jensen from Saturnus very well and I can do lots of frosty-blackmetal-screaming as well like on Empyrium's 'A Wintersunset...' & 'Songs of Moors & Misty Fields'.
I tried Brave Murder Day tupe of screaming, but I find it very hard for me voice.
You will probably say to me to fuck off now, but I use clean vocals rather than roars and people said my voice reminds of Fernando(Moonspell), Mikael(you know who, and the singing from Morningrise) and Marcus(Empyrium)....