The fundamental values of the mono pedal without true bypass are comparable to the MF-104M: tap tempo, modulation, inputs for an expression pedal and midi and control voltage.
In difference to the MF-104M, the maximum delay time of the Moogerfooger MF—104M SD has been doubled. Thus, you will get up to 1600ms of marvelous delays.
A spillover mod allows to make the trails of the delays fade away softly after you have switched off this 9V pedal (if you ever are willing to switch it off).
And like all the legends of the Moog Moogerfooger MF delay series, the production of this cutie has been stopped as well.
On my cult-factor scale the Moog Moogerfooger MF-104M SD gets also 8 of 10 points.