Quick disclaimer: this is my first volume pedal so if this is normal, I apologize for the dumb question. When I have the MVP rocked all the way back, I can still here the guitar signal coming through. And if I turn the amps volume up high its fairly obvious. However, if I have my foot actually on the pedal putting some pressure on it, there is no sound. Which is a good thing. But shouldn't I be able to take my foot off, leave it titled back, and not hear any of my signal?