I actually recently started to play with the presence maxed on all 3 channels. @ first this was quite harsh until I dialed out the nasties. I like it because I get great edge and I can dial in all of the chunk I want. What I do is turn the mids down in order to keep that sustain that it apears to be removed. (Settings are with PRS Dragon II Pickups)I have my gain set @ 2:45 oclock, my Bass @ about 9:45-10, my mids are @ about 8:45(would be 9 but the sustain starts to go away @ that point and it starts to get the nasities) and my treble is set to about 10. This setting is used on channel 2 and for channel 3 I bring the bass up to about 1 oclock to compensate for the channel presence difference. I really like this setting because I can hear myself well, it cuts through and my sound is really tight. Wen I back the volume off on my guitar things dont mudd out on me either so I can use that for clean-er sparkle. :wink: