Foxx Tone Machine Issue

[jimmy54]

Hi fellas, I've been using a Foxx Tone Machine for about a year now and really love the tones you can get out of it.  One thing that has always bugged me though is that when the guitar volume is rolled down, the volume not only reduces (obviously) but the tone goes really dark and in my opinion unusable.  I know that the FTM won't clean up when lowering the guitar volme but is there any way to rectify the loss of highs that occurs?

[Meanderthal]

 Solder a 33pf cap between lugs 1 and 3 of the volume pot on your guitar.

[petemoore]

Solder a 33pf cap between lugs 1 and 3 of the volume pot on your guitar.
 
  Ie for a treble 'retain' or 'boost' [which is actually volume decrease with less treble decrease] wire a ~little across the input/output lugs of the volume pot...not all guitar pots are wired the same way.

[jimmy54]

I don't have this loss of highs when reducing the guitars volume with any other amps/effects etc, only with the foxx tone machine.  Will wiring the cap across the guitars vol pot have any negative effect when used with any effects that don't lose high when guitar vol is reduced?

[petemoore]

  Bypass cap on guitar VC isn't for everyone.
  I like it...and it's easy to remove, if you have a 2 PU guitar, try this on one of the pickups...I like it especially when using Fuzzes, it allows less gain to be had without mud appearing...on a FF it turns down to a treble boost type of sound...
  I wouldn't necessarily modify my guitar to suit an Octave circuit, but the bypass cap on VC is certainly worth checking out for a while...it fundamentally changes the reaction of anything after the guitar, to guitar volume rolloff...I use that knob alot, more than I did before the mod, when turning it down tended to reveal mud.
 

[jimmy54]

Thanks Pete.  I'm also a great fan of using the guitar volume pot, especially with fuzz face circuits.  I love circuits that clean up with the guitars VC.  With my fuzz face circuits I don't lose treble when reducing the guitars VC (this is with a strat by the way) I just get a nice clean-up (like a treble boost as you say), that's why I would prefer not to have to add a cap to the guitar as it's only the foxx tone machine that gives me this problem.  I was hoping there was something I could do to the effect itself rather then the guitar.