Dumb guitar volume cap question

[hamfist]

I'm just starting to experiment with adding caps and resistors across the volume pots in my guitar to counteract treble loss when I turn the vol knob down.
   My question is ..... If I put a cap across the two non-grounded lugs of a volume pot, will it only affect the tone when the vol knob is turned down or will it also affect the tone when the vol is on 10 ?

[Twinfan]

It will only affect it when you wind the volume down, and by a larger amount as you get closer to 0.  You're allowing treble frequencies to bleed straight through to the output and essentially they're not using the volume pot.

[hamfist]

Cool, thanks Dave. That is fitting in with my experience this morning as well.
  I seem to have got the right components in first time. I went for a 680pf cap and a 150K resistor in parallel across the the two ungrounded lugs of my bridge pickup vol pot. Apparently that is a fairly traditional combo. Anyway it does what I wanted it to perfectly.