Anybody know of a different splice kit for underground other than the shrink tube type? I don't really like them and figure there's gotta be a better way. I looked at the "Polaris Blue" kind but I haven't found the right one. I've got one 10/3 with ground going to one 10/2 with ground. It was put in a shrink type originally and has lasted probably 20 or more years, but I'd like to replace it with some other kind that's easier and more efficient. This was on a customer's A/C unit. thanks....