I ordered the 1.74mm and wish i would have ordered the 2.2 for use in my tarp ridge line. The 1.75 does not stay place in the figure nine without a half hitch to help hold it in. as a structural ridge line it works outstanding.
I don't like to tie knots in the line as its slippery i much prefer splicing it. I have found that using a small steel leader to pull the ends to be the most effective way of splicing this small line.