I'm almost the exact same height/weight. It's right on the border, but I personally like the 11' hammocks. It's worth the .5-1 ounce extra weight. The knotty mod is nice, but is fairly easy to add if you want to save the 20 bucks. More than anything, it helps keep the top quilt or sleeping bag from slipping over the side (in absence of a bug niet).
Father. Husband. Scoutmaster.