How to swap out a knot

[sas71]

ive been looking at this boar brush (love the handle) and just in case i dont like boars hair, whats involved in swapping knots?

http://bestgroomingtools.com/boar-bristle-ivory-shaving-brush-edwin-jagger-p-1257.html

 

[sas71]

after i posted this the thread on a full knot swap was right under this lol

good timing