Originally, I didn't have the bottom shockcord at all. The mosq did find me, yuck! And the breezes did play with the net.
I learned my lesson. Made the Fronknet.
I have since changed to bottom cinched but not tightly. I like the way the bugnet slightly tightens now and keeps it from sagging. And with the net on the bottom of me also, they can't get me from below in my single layer hammock.