DSGkelly,
A polamer knot is the only recommended knot to tie for Fireline or other superbraids.Any knot tying book will have it in there.It is easy to tie and WILL NOT BREAK. One more note to fireline user's that i learned the hard way is to buy very good swivels or you will pull them in two on big fish. Just use a Duo-lock if not throwing spinner's.I now have a designed in breaking point on my line in case I get hung up I won't get spooled before the line breaks.Just tie a swivel on the end of the fireline and then just a short leader(6"-8")of lesser strength fireline or what ever and then a Duo-lock and when you get hung up it will break where you want it to.FISH ON!!!!!,lester