Experienced this weird thing last night. Took some spare pedals and began to put together a really simple, straightforward "rawk" board. All these pedals worked fine and dandy last I used them. And fine and dandy on their own last night... However, when used together things got strange. The signal path was: STRAT > Tuner > Rothwell Lovesqueeze > Boss OD-3 > Jet City Afterburner > AMP. I had the Lovesqueeze set very discretely - a stealthy, always-on compression with the comp control at 9 and the volume just above unity for the tiniest boost. This then hit the OD-3 - gain all the way down, volume (again) just above unity). Finally, the Afterburner, set to full OD with boost but around unity. Whenever the Afterburner was on (and whether or not the OD-3 was engaged), the Lovesqueeze became microphonic. Like, backwards in the chain something was altered by a pedal later in the chain being engaged. If I tapped on the pedal or near it, it sounded like I was tapping on a really hot pickup. It became microphonic to some degree. This has never happened before. Don't get me wrong, the tone was badass. I'm just mystified.