The Mystery Knob works a little like the Tone knob on the MH where it does take away some highs, but it does a bit more like take away the attack and sagging it a slight bit. It certainly takes the focus out of the trebles! I need to play again at higher volumes to see how it works with other guitars and amps. In some ways the Mystery Knob acts a bit like the C knob on the MG and the Nature Knob on the Beeatch acts more like the lower right hand knob on the MG. At 9 Volts the Beeatch had the same tight bottom as the MG, but the main difference between the two are the MG has more distortion/focus on the upper mids where the Beeatch is distorted/focused more on the mid to lower mid range.
I just listened to the videos I made and, while I am surprised they are as good as they are for a phone, it didn't capture the sound at all. I had to prop the phone on a pedal bottom for angle and weigh down the back with another pedal so it would stay put. But, the audio suffered for it. I like to have a lot of dynamics and percussive quality to my sound which may be because I do play a lot of acoustic as well. I really fumbled on the finger picking part because I usually only finger pick on my Martin that has a 1 3/4" nut and my LsL is just 1 5/8" and my fingers don't fit very well lol.
Today I want to experiment with Voltages to see if sagging the Beeatch makes the low end as spongy at a BJFE HBOD. At 9 Volts the Feel of the G and the Beeatch are very similar, so to me, the Beeatch is a Bee with a little G in its heart To me the Beeatch is a more useful pedal due to better control of the trebles and bass separately, so I am really pleased I took a chance (and got a great deal).
Great job Donner!!