Sample Settings
If you don't want feedback or just a hint you can keep this knob to 9 o'clock. and the looper will act as a simple bypass pedal. Some fuzz pedal start reacting right away at the lowest setting, other pedals, like delays need more feedback to have a pronounced effect. See our demo here on Youtube
You can achieve some interesting effects by using your guitar volume & tone knobs: volume down increases feedback; tone down reduces feedback. See our demo here on Youtube