Just wanted to say thanks and give big props to Theo at Hartman Electronics for the flanger. Not only did he meet his waiting list time (short!) and build my pedal with alternate cream-colored knobs, he sent me an email with with gut shots for the trimpots and explained how to tweak them. The guy answered every single email in an extremely timely manner. This is a darned-fine pedal. The filter switch is a really nice to have to set your favorite sweet spot without the sweep. Very nice pedal indeed and thank you, Theo! Jeff in Texas.