The way I do it is using a continuous ridge line with prussics to the tarp. Ridgeline is above the tarp. Hang the hammock and adjust for correct hang. Tie off each end of the CRL to trees with a bowlin on one end and truckers hitch on the other. Raise or lower CRL as necessary for correct support of netting. Adjust prussics to center tarp. Stake out tarp. Done.