Hi all, looking for the accumulated knowledge from 'round the world again. My front tramps are still sound but they look terrible because they have no edging and they are hard to keep tight. They are currently the tennis net style knotted rope tramps. I'm considering changing them and I'm torn between the Spectra and Polyester materials. I want to keep the open weave style so not looking at Ferrari or Chicopee materials. What are your experiences with longevity of each style? I've