here`s my 2 cents...way bk in the beginning of my ham radio learning, when connecting wires together, or to a fitting, always remember, solder is a lousy conductor! make a good physical connection, ie, crimpimg, then if needed, use a little solder to keep it there! abt the only thing i solder on our bote, is the coax connectors, then only the center conductor...i have a crimper to die for when doing batt cables...it makes the fitting, and wire as one! (almost takes 2 people) it gets loaned out a lot...i have a string tied to it, so it comes home!...i used to have one of those hammer slammers, when a coupla fittings fell off, i gave it away!...c