Lonetracker: I've made three TL stands, all out of tulip poplar saplings, for a natural look (except for the first one that uses a TV antenna mast for a ridgepole). I'm afraid your ridgepole is just too weak. Your hammock attachments appear to be in just the right place. Here's a detail of your set up as you posted previously. Lonetracker's TL.png
It appears your hammock is attached just outside the tripods, which (I believe) is the best spot. This brings the weight straight down, evenly distributed among the three legs. The force pulling the tripods' tops toward the center is significantly less than your weight. But, in this case, enough to bend the ridgepole.
Just get a larger-diameter pole for the ridgepole and you'll be hanging in rustic style in no time!