I've only dealt with one piece of PV but found it beyond my capabilities to rip (have ripped wool any number of times). It also frays freely, as noted, and I'm going to use a "fray-check" product on the top edge before I sew any farther. If you're not familiar with that, it's a liquid in a squeeze bottle that basically "glues" the threads in place along a cut edge.

So, two posts, two differing opinions -- welcome to XMarks LOL !