I love my Matrix 5 pin .019! I hear a bunch about broken fibers on these sights, but I have never had one break. I use the Nitro Lights because we can't use electronics in Idaho, and they work fine for me. I shoot every day with all of the usual drops and stepped on issues, and I can always count on the sight to stay more accurate than I am. When the time comes to replace the sight, then I will buy the same sight.