I'm finding my presence pot makes very little difference to the tone at all. I'm talking it through with Nik to try and find out why but I'm not getting anwhere at the moment. I wonder if those of you with the non-JZ-modded layout would conduct a little experiment for me.

On the clean channel with all switches down, EQ all set to 5 (12 o'clock) pre amp volume on 5 master loud enough to hear it well (2 ish?). Set the presence to 0 and strum a chord gently . Turn the presence to 10 and strum again. Do this a few times to get a feel for the tone change.

Then set presence to 10 and turn the treble down to get approximately the tone you get with the presence on 0. I'm just trying to gauge the range of your presence control. I know the presence alters more than just the treble or at least it should, but on mine it doesn't do much at all.

I'll let on what i turned my treble down to after a few of you have tried and reported back.

Many, many thanks