I've been reading a lot about this topic. So far on my board now, I have five pedals, four of which are hardwire (true) bypass. The first in the chain is not a true bypass - a Behringer TU100. Best tuner pedal out there for under $30. I've checked my tone with and without the tuner. It does not appear to color the tone or drain any of the signal in bypass mode. I'll describe the bypass sound coloring of pedals I've owned in the past: (None were hardwire bypass): DOD Overdrive/Preamp 250 - I don't remember any tone suck Boss DS-1 - All clear, no tone suck. DOD Vibrothang - didn't have it very long, so I don't remember Danelectro Cool Cat - Don't remember Danelectro DanEcho delay - actually *improved* my tone in bypass mode. It really warmed up my sound. Dunlop Cry Baby - I don't think it colored the tone any Now, it is known that if you have a long chain of effects, especially digital effects, the signal from the guitar will be reduced and/or colored somewhat. I guess I'm going to ask the pedal freaks here to list some of their experiences with pedals in bypass mode. In particular, which "true bypass" pedal suprised you with tone drain (if any)? Also, which buffered (non-true) bypass pedal did you try that so little tone suck you'd believe it was true bypass? I've posted price ranges in previous threads, but in this one, anything goes - whether you paid $10,000 for a one-of-a-kind OD pedal hand-built by a Tibetan yogi that you waited 10 years for and had to answer a riddle to accept final delivery, or whether it was a Radio Shack kit your kid made for a school project, let's hear your tone suck stories.