OK, I know the deal with Shimano chains is that you are supposed to get the replacement pins, but if I'm in a pinch and haven't taken the pin all the way out of the outer plate (like I would on a standard chain) can I get by using the chain? I want to throw one on a fixed-gear bike (does less flex make a difference?) and I'm short on chains. At worst case I'll grab one from another bike, just wanted to know. Thanks!