The plexi on the III sounds great, but it seems like there is something missing. When I crank everything on 10 and apply the variac at 75, it seems like it is missing that very trebly brash crashing tone that a plexi on 10 makes. I go back to the live Van Halen recordings from the first tour in 78, it had this very sharp brash tone that I can't seem to get from a modeler. Jacob Deraps' tone from his Germino on YouTube is another good example Is there any adjustments I can make sound like that? Even the TopJimi Brown Sound profiles on the Kemper seem to be missing this. They sound more like his studio tone which had alot of EQ at the board.