&feature=youtu.be

says "invalid link" for me but maybe it will work??

Theres a thread on Pinside regarding having these made using micro switches.. seems the guy is experiencing a few difficulties getting the product reliable... might be a good opportunity to introduce these Mike? Demand worldwide would be pretty huge id say..

http://pinside.com/pinball/forum/topic/replacement-for-those-sliding-horseshoe-contacts-in-williams-drop-targets