One way I've tried to adjust my support line at the hammock is with a ENO style. just run the rope through the loop at the hammock end and tie off w/ you favorite knot, good luck untieing it though. I had to use a screw drive the pry loose my haught line hitch.
CPR goes up and down, up and down......because my patient's dead.
Hanger Fromally Known as Ghost93.