a friend bought a 70 Chall from LA & it had a type of butt connector with a tapered steel pin in the center & threaded end caps , , you do not need to strip the wire just insert it through the hole in the end cap & tighten it , the tapered pin pushes into the wire end & flares it so it will not pull apart & become water tight , if you need to disconnect the wire it takes seconds to unthread it & reconnect it later , just wondered who made them as them seem like a great Idea , my friend would like to get some more of them if possible