oh. the DF-2 is very touchy. it will do that if you are holding down two notes by accident or even if one note is still slightly ringing with the one you want to feedback. you have to be very clean to get proper results.
yup i noticed this. you have to turn level up to 10 to match any other distortion pedal set at 5. its a quiet pedal. i have another distortion pedal like this. im nomt 100 percent sure but i think its my OD-2.