I seem to be experiencing a problem when playing my rig at higher volumes. I am playing through either an Aggie or TrueVoice peamp into a QSC 850 (in bridged mono mode) and into a Schro 1210. I have checked the rig many times to be sure things are set up properly. The problem occurs when I sustain certain notes, like D on the G string or A on the D string. The fundamental seems to die out very quickly and what's left is a very annoying harmonic. I'm not sure if this is a rig problem or a guitar/string problem, or even an input gain level problem. It seems to occur indepedent of which preamp I use (Aggie DB659 or TrueVoice). It seems to occur the least on my Modulus Fretless Jazz (TI Rounds) and seems to be the worst on my Warwick (Infeld Super Alloys). Anyone else experience this? Could this be that the Pups on certain of my axes are hot and thus should either be lowered or the strings raised? I don't want to start f'ing with my guitar set-ups until I am am sure it is not something else. But it is ANNOYING THE HELL OUT OF ME!!