well dude keep the mesa i would kill for a mesa amp, i have a marshall and there to much trouble something always goes wrong with them, they never sound the same each day , so if i were you i would defeintly keep the mesa, and as for the dude who said the metal zone sucks your way off buddy alot of people that have just suck at setting them my sound killer dude i could straight rip a hole the roof with that thing

peace