I been playing with a "ROCKTEK, Metal worker"
Distorion pedal
Love the name, and the sound...

Controls:
Level
Low pass
High pass
Distortion

I love it over my 303, was thinking of selling till tried my old mans effects pedal.

http://213.129.73.14/members/my_trac...CF87918280.mp3
That was my last creation,
Standard 303 for first 2 mins
Distortion pedal after.

You can hear difference for yourselves.