Both Colby and I have always just used a mat for our hammocks. Seems to work just fine for spring to fall in the area for us. Weights less and costs less.
This was our first time on Forney so dont have any insight into any other ways in. Someone with more knowledge of the area might be able to provide better information.
We did look at Jonas and at the time it was looking really good even though we did not fish it. We never saw another fisherman all six days except during our hike out the last day so there was plenty of water on Forney to fish. Just the right size for the two of us to fish together and stay close.
I wanted to stay close to my brother, it would have been bad if he got lost.