The Obsidain is absolutely amazing(as it should wit that price tag) haven't had to locktight or tighten the pins ever since getting it. Only complant and the reason for the four stars is the g10 scales. They look good and even slightly enchanced the feel of flipping, that is untill one fell off. Checked the others and they were just as loose. Actualy like it better without them, but it's about the standard that's set. If you like the scales and dont want to loose them, tear the four off then reattach them with a better adhesive.