I have a micro q-tron on my pedalboard. I just noticed a signal issue when I used my headphones to check my effect settings. I'm losing some high end at the q-tron, it seems. I bypassed every pedal, one at a time. I'm positive it's the culprit. I don't even want it on my board, now... Aren't the micro Q-Trons supposed to be true bypass? Why would my signal take a hit when the pedal isn't on?