First i'll give my advice on soldering. First, If you are into electric flight buy a good quality soldering station. I bought the TrakPower TK950 and love it. Discard the cheapie radio shack units. Second, use small diameter rosin core solder. Don't try to solder with the heavy duty roll used for creating wiring harnesses for car restoration. Third, use a good quality soldering paste, ALWAYS. And last, and the best advice i can give, buy some of these when soldering Deans Ultra Connectors. Use them once and i guarantee you will thank me for them.