My DeWalt 12" compound sliding mitresaw is a great tool, but I'm having a problem that I hope someone here knows a solution to. In fitting trim, I often need to cut an angle within 1/2 degree of the zero degree stop. When I set and lock the blade at these small angles, the lock will often not hold - the act of cutting will cause the saw to slip into the zero degree stop. I've looked for an adjustment to tighten the lock, but can't see any way to do it. I know that I can overcome this by shimming the workpiece away from the fence, but this is more difficult and less accurate (at least for me). Any ideas??? Thanks.