Only use four regularly, as in all the time!
nail knot, or needle knot for backing to line.
if not using braided loops, use same to attach heavier nylon for start of leader, with three turn surgeons/water knot for loop. Either then loop to loop connection, or tucked blood knot for tippet.
Same tucked blood for attaching hooks ( fly, spinners, or bait hooks)
if forming droppers use four turn dropper knot, then blood knot to fly.
Sometimes if using braid, when spinning, or beach casting, will use rappalla knot for hook and swivel connections, but not often.
regards
bert
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