The data buttons and switches are membrane -type. If you peel off the rubber pad, you will see that each switch is a circular white disk with an amber center, entirely flush with the surface of the unit. The switches have no apparent movement when pressed. The rubber 'pedals' each have a rubber bump on the underside that pushes the amber center when pressed. All you feel is the squish of the rubber. Since the switch's LED will light, and the main display will flicker briefly when a switch is pressed, I am satisfied that I have engaged the switch without a mechanical 'click'. I also like the silent operation. The glue-on rubber foot solution might actually work well if you find the right product.
Lake Butler originally offered an option for mechanical switches, but I have no details of the design. If you can track down Emmett Bradford (the designer), you may be able to get some info, but I doubt he is interested in support after all this time.
I also have info for the 32K memory upgrade if you are interested. I finally found it in my garage after a long search. With it, you can program each of the 5 switches in each of the 128 banks (640 total) with over 16 midi commands each. I have no info for the 64k upgrade, although I doubt I would ever need 32 commands on each of 640 switches
Although obsolete, the memory chips are still available, as are the blank eproms. Your unit may already have 32k though. The later ones even came with 64k. Still seems small, but midi commands don't take much memory.
After hearing about the problems with the SoftStep, I have decided to refurb all of my Mitigators, including battery replacement, eprom refresh, memory upgrade, paint job, and cc pedal refurbish. I still cannot find a source for a pedal with a 100k log taper pot. My Cry Baby pot is clearly linear, or at least much closer to linear than log.
While a couple of current footswitch units will do the job I need (like the Gordius), they are just too expensive for my budget.
