It is my personal favaorite tippet for trout fishing. It is extremely strong for a given diameter and I did not have any knot problems.
I primarily use pitzen & nonslip loop for leader to fly knots, and a 3 turn surgeon for laeder to tippet. I am sure the seagar knot would also work
for leader to tippet. It is basically a figure 8 knot with acouple extra twists.