2005 KD Platinum, minus the balsa wood core though.....
Wet Tech Alien gloves
Mid 2000’s era Straightline vests
And some of my youth and exuberance from that era......
Soak it in dish soap briefly, work it into the knot and start tapping on it on a hard surface with a rubber mallet or a hammer handle being careful not to break any strands and keep working the knot loose. Works almost every time...