Hotone Wong Press Volume Exp Wah

I ordered a B-stock pedal, the Q knob did nothing, so I sent it back and got another one brand new. Q knob still does nothing!!! I did rma again and had yet another one and again Q know does nothing! I got in touch with Hotone support, they say yes it's subtle and Cory wanted that way. But hey this Q knob does absolutely nothing believe me. Also tested with white noise sent through the pedal and did spectrum analisys, nothing moves. So I don't know what's happening here. Other than that I quite like the pedal and the features. Maybe it's just too small, right your average smartphone dimensions, you need to get used to it. Also if you have a pedalboard with bars (I have a Palmer) it doesn't reach up to three bars but two and a half, so it's not the best to have it stable. Nice built quality, velcro sheet already included in the box. Search for the pedal on YouTube and you'll see my video which demonstrates the Q knob problem.