you can add an eq to the guitars mix bus and notch the frequency there instead of doing it on the individual guitars. try a mix without changing anything though. i'd like to hear it raw. the tracks you sent me to work on had perfect highs without any rolloff. real pro cd's have some high end sizzle on the guitars. just listen to anything from Metallica or Pantera and you will here the fizz. it's part of metal....embrace it.