I can understand the attraction and popularity of integrated bugnets, but unnecessary weight is unnecessary weight when cold temps have sent the skeeters into irrelevance.
I also find the zipper on integrated bugnets to be incredibly annoying. I occasionally get a calf cramp and the pain is excruciating, so blinding that I can't even find the zipper. A bottom-entry independent bugnet certainly helps me get out of my hammock lickety-split in moments of panic. I just swing my legs out of the hammock and stand up.