I bought the mxr pedal mostly for the noise gate because I'm always having feedback issues. I really don't like the tone though actually. Would the noise gate work for another overdrive pedal if I used both of them and just turned the gain all the way down on the mxr or whatever?
sell it and get a proper noise gate
This seems like a no-brainer. Buy an actual noise gate.
Is the noise gate functioning separate of the pedal? IF it is - you could. I believe that's what the manufacturer's manual is for, but reading is too hard, isn't it?