How accurately do the pads have to be placed?
Generally speaking, there is quite a lot of leeway in the placement of the pads. The chart supplied with each machine gives suggested positions for various areas of the foot: each area is numbered, and the pads are placed as indicated by corresponding numbers followed by the letters “B” or “R”, denoting the pads connected to the black and red output plugs respectively. So, for example, to “knock out” the area of the foot marked “2”, the pad with the black plug attached is placed in position “2B”, while the pad with the red plug attached is placed in position “2R”.
