Originally Posted by BillyBob58
Now that is a complete analysis! Though at 206 I might weigh a bit more than you, I have not yet seen any deformity or slip. It appears that once I am in the hammock, the ropes are at about 30*. But, I suppose 300+ pounders might want to look elsewhere. For me, so far, they seem to be really handy devices.
Only about 30 lbs. From the use you have already described, it would seem that the weight difference isn't making any difference in the use of the cleats.
After a lot of experience and head scratching and examining the forces on the cleat firsthand and visualizing the forces and many, many inspections of the half-hitch for tightening (none ever observed), I decided that the only reason I continue to use a single slipped half-hitch is to keep the free end from swinging and then dropping free of the cleat. Also, to keep it off the ground. There can be rotational forces on the cleat depending on the manner of running the rope to the tree and back. The rotational forces can rotate the cleat when you get in the hammock and if the free end is, well, free, it can be swung out of the cleat if the cleat happens to rotate in the right direction. Thus, I tie a loose slipped half-hitch to prevent the free end from being swung free.
Also, the half-hitch and drooping rope act as drip strings. Just more insurance in that direction
since the cleat itself will act to interrupt and redirect the flow of water away from the hammock.