I have the problem of slippage too but at least as aggravating to me is the fact that the Pfaff cord is too short. I guess I have longer legs than most? My sewing counter is only a couple inches taller than most but I am still not comfortable using the pedal both because it slips around and is never as far back under the table as I think it is. LOL Must try using some of the shelf liner. I have vinyl tile on floor at present.