A friend of mine gave me a new one, uncut, after he figured out his pool was garbage. I laid it square over the top of the pool, and just started with an edge in the pool, flush. Scooted another edge in, and cut the 3rd edge. Final edge was a bit tricky, and kind of crooked. But it's just constant readjusting, to make sure it's not wrinkled anywhere. I was fairly pleased with the outcome. But yes, good scissors.