FWIW from a realistic standpoint this only changes the travel of the tone control and the maximum amount of treble removed - not the minimum. In a passive circuit the cap simply shunts frequencies to ground; a .1uf will go to"mud" more than a /.047uf, which sounds muddier at full rolloff than a .022. While there is a (usually inaudible) amount of additional treble response when the tone control is not rolled off at all - which is not necessarily the best sound tonally - it won't make a pickup "sound better". Mike makes a great point. If you are using a bigger amp and not turning it up very high (like aTwin on 2 1/2) one or more of your pickups can lack frequency response. - sometimes on the top end and almost certainly on the low end. You'll always get better sound out of the guitar using smaller amp that can be turned up enough to drive the speakers to full frequency response. With a larger amp that's often too loud to be practical.