I just wanted to add from an old thread, that I enjoyed and agree with PerryR and Ericb on their views. The Klon does color your amp a tiny bit when bypassed. Yes this could improve the mid scooped voicing of most Fender amps, but maybe not a Vox or a Marshall. The "sell" that BillF wanted to give me on the phone was that the Klon has a special way to shorten up to a 50 foot cord running to your amp at all times( via buffer) and that is possible ONLY due to a non TBS switch. OK, but I already own a boutique buffer pedal for that purpose already. The whole Pete Cornish essay doesn't make much of an impression to me because you can easily buy or get a boutique buffer (full sized pots, etc) that wil make sure your pups aren't loaded down and the you retain the highs of your original signal. So the Klon's special interaction isn't too mysterious though a GREAT pedal.