[THEFERMANATOR]

Marine heat shrink has a sealer inside of it. When it is heated to shrink it, the inner liner turns to glue to completely seal the connection. It is some GOOD stuff, but hang on when you see the price. I remember buying it for $.25 a piece, and the last ones I bought 2 years ago were about $2 a piece. The problem I have found with the heat shring terminals is when you crimp them, you normally pierce the heat shring and leave part of the terminal exposed where the elements can get in. They're still good conenctors, just be careful crimping them. For your main feed wires, make sure and crimp, solder, and heat shrink them. If you crimp then solder the ends, it can still conduct electricity even if somehow you get a bad spot i nthe wire and it starts to turn black. If you just crimp it, that black portion inside the terminal wil lstop electricity from conducting, but when you solder it the black eelctrolisis cannot happen so the wire lasts longer(if that makes any sense, I'm pretty bad at describing things).