Maybe pin it, but removing it? That could be a lot harder. Read the safety design. It actually disconnects the trigger bar. It's not as simple as adding a series 70 firing pin to a 1911 with a Schwartz safety firing pin block in the slide. And, GLOOB, your "machining/manufacture" comment was genius! Upon thinking about it, you're probably very right. "Down" brings the trigger bar down inside the right side of the frame. It can't physically go "up" because it's already at the top of the frame and that would drive it into the underside of the slide. By flipping the safety to "up", it probably lifts the lowered trigger bar in the frame to be in line with the cocking cam allowing it to fire. From reading what Kahr said about the design, I'll bet that's how it works. I'd have to see an exploded diagram to be sure, but that does somewhat make sense (to me) about why they make have made the safety that way. Still don't like it, though.