For high Gain pick ups use the minimum guitar head input gain. This pedal you can get full control over your tone. Very defined signal, you get an excellent dynamic note range.
This overdrive is the best that I’ve ever tried. I mostly play metal and this thing rips!! I was using an electric eye audio mud killer pedal before, but the ST9Pro+ blew it out of the water. The price may be hefty, but it’s damn worth it!
Slight boost into heavy distortion or breaking up tubes on clean channel. More headroom or vintage sound. Boost low end if needed. No more complaints about not enough lows. This is the best.