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Each material has its own issues. Kevlar is very difficult to work with (need special scissors to cut and you can't sand the finished product), Dyneema is sensitive to UV degradation. Carbon is $$$. Basalt sounds like the sweet spot for some of my applications but afaict it can't be purchased by the yard like most materials so is essentially unobtainium to a hobbyist who can't afford a $1k or so roll of material.