I had watched a Youtube video by a guy named " Sorin-DIY Electrical Nerd". He used a 10W 43 Ohm resistor between one red and one black ground wire. He said a lower ohm resistor would get to hot... IDK. That is why I used the 10 watt 50 ohm resistor. The only difference between his and mine is he didn't use a rotary switch. And yes my switch is a " B before M" switch. I think I will probably have to back to separate output jacks. I really liked the rotary switch deal but just too many bugs.