>>635985I've adjusted how i deal with the ends to make sure it cinches up really well. in addition to the main drawstrings i string the other smaller lengths of shock cord through the loops at the end (1 & 2 in pic related). I attach the main side cords to the carabiner, and the ones i run through the loops i tie right to the gathered-end of the hammock itself. Also, getting the right tension in the underquilt can be pretty tough, it needs to be tight enough to nestle you but loose enough so your butt/shoulders don't compress into it.
finally, i always slip my fitted tarp around the outside of the underquilt to act as a windbreak. this seems to be pretty integral actually.