Mother of all metal amps

i understand your dillemma but i think the mark iv is such a great amp maybe you should look harder as to why you can't get a good tone. i have one on the way it is at mesa factory getting some work done on it and i've tried them before, you can get such a powerful tone out of it. tried it on my friends 60' LP w. emg 81/85 and i've tried with my 7 string with dimarzios, it sounded pretty brutal, and i didn't even know the tonal functions of the amp that well. i've been to couple of lamb of gods concerts, during soundcheck they sound very very heavy. unless you want a more saturated gain tone in which case it's not your amp. i gues it's me, i like more "less gain" tones. even on my road king dual recto in modern mode i keep the gain around halfway. i am able to get a very very tight and focused dark sound.