I'm using a 6 position 2 pole rotational switch to change the resistance of two input voltages. Each position adds a resistor on each input, thus increasing the overall resistance and lowering the voltages on the outputs, except positions 1/7 which are direct without resistance. This works fine. My problem is that although I'm using high quality Grayhill switches, there's a sweet-spot between positions that causes the voltage to skip to 0R if the knob is turned slowly. If turned fast, its unnoticeable. Is there a simple way to get rid of the spikes between positions? Capacitors in series with each resistor?