if it is only at the ends and you don't have the $ for new fabric how about:
1: shortening slightly and adding a structural ridgeline to help get your angle right. (make your rope 83% of your hammock length.)
2: layering your 1.1 with your 1.9 an making a double layer hammock. bonus being strength and if you use a pad leave a small section open so you can slide your pad inside.
hope this helps.