When tying nano-fill lines.what works for us is a knot against a knot.A Fireman's knot.LOL.Or" lock knot" First tie a knot in the end of the line run through hook eye,Nose ring,ect twist 8 times run the tag end with knot through loop in line pull slowly,slowly as line tighten's up to hook eye. The strongest knot out their bar none.When spooling on reel "spinning reel or baitcaster put a few wraps of mono backing to keep from spinning around spool or a piece of "duck tape" around spool.Hope this help's.Don't use nano-fill you will be hooked.