I have to ask because I've never actually owned a JCM800 and I see this posted often...is this true for brutal AF metal? I do own an 800 Synergy module and don't find that it takes boosts all that well. At least not for getting into metal territory that is tight, percussive, and saturated. I've also read of people buying the 2203x and struggling to get metal tones with a boost. This has been the main reason I haven't bought a 2203X. Not sure I want to deal with buying a vintage 2203/2204 and dealing with an old amp that may or may not be stock.