Hi, I bought a new leather headstall yesterday and it has chicago screws where the bit is attached. I need to loosen them to put the bit on, but they won't budge. The smooth side just spins. Any ideas on how to loosen them? I have tried pressing on the smooth side with rubber gloved hands, and it didn't work. Also, is there any way to convert them to ties so they will be easier and look nice? I don't really want to take it back because it matches my saddle.