I have a trusty Boss CS-3; not very popular around these parts but it does the job for my compression requirements (I like the pop of the attack). I use it right near the start of my chain (after a wah, tuner, fuzz and envelope filter - all true bypass). The pedal chain then contains a bunch of other true bypass pedals, including some boutique stuff. Near the end I have a Boss TR-2 (newer unit with no volume drop). So, in my application, these couple of Boss pedals do the job they were intended to do, plus provide some buffering to an otherwise true bypass setup. I reckon this is just fine. I had my eyes on a Wampler Ego compressor, but if I grab that and replace my gumby CS-3, I will need to put my MI Audio Boost 'n' Buff on the pedal board to provide buffering duties. For my application, the Boss solution is just fine. Discuss.