as has been said before, a good mono shockleader of at least 10lbs breaking strain for every once of lead used will do every bit as much good.
and i normally find that no matter what size your knot is, if you get weed collecting on your knots , every bit as much will gather on a small knot as a big one as it piles itself up on top of itself after sliding down your line.
only my opinions on it!
ps....ok , ill tell the truth, its too expensive!!.....im a ballymena man afterall!!!