Letting you know in advance my critism is constructive and me thinking out loud. How would I prevent the copper wire from being ripped of by the rigors of combat. and there have to be two connections between sabers for there to be a circut. Thanks for the suggestions. I think something alonf the lines of your copperwire thing may be possible. For the "swhish" sensor I was also thinking something on a spring. Like a variable reistor on a spring with a weight. I don't know how id go about interfacing that with the computer tho.