I worked on the quirt last night, got the knot about 3/4 done and cut it off. I built up some ground work with a piece of latigo and tape at the end where the loop for the popper is. I was trying to put a 3 X pineapple there, but I let one side get to crowded. One end is fairly large and the other is maybe half the size, so getting a nice button might take me a few times. These knots are sure easier on a dowel.
On a plus note I am getting good at cutting things off without causing any collateral damage.