Just gave an hour "concert" to my game collection to see if I can growl.
I did mostly Opeth with a side of Bloodbath and it turned out better than I thought.
First song was okay, I struggled the most during the end of second and third one, but then the voice seemed to settle and I theoretically could go forever with semi okay growls. I sucked at Furnace Funeral though, got way too fast for me and looks like my technique is not good for ultra fast growling.
But to my surprise fucking up my voice with growl allowed me to reach higher voice on my clean vocals. To test shit out I finished the "show" with Beelzeboss from Tenacious D and I could almost hit the highest notes this time.
I recorded the last song (but only audio it seems because my dumb ass didnt support the phone) and might upload later.
All of this got me pumped, I guess I really missed growling and fucking around, shame Im not able to do that often, since Im not leaving alone now and dont want to bother others with toilet demons or high as fuck ridiculous clean vocals.
@Edit
How the fuck do you deal with burping, the urge comes suddenly and when you are in middle of the verse there is just no recovering from that.