Bridge Stitching - Possible Future Failure?

[JerryW]

I am working on a bridge hammock that I started last fall and just now got around to finishing and I'm concerned about some of the stitching.

The material is the JoAnn's ripstop, ~1.8 oz/yd. The webbing is rolled to the inside and sewn with two rows of stitching. My machine was set for about 6 stitches per inch.

When I lay in the hammock, the stitch holes seem to open up quite a bit and I'm worried about a possible failure. Have any of you other bridge builders noticed this on yours?



Thanks,
Jerry