Being a newbie to the forum, I'm a little confused by the number of times I see serial numbers that have 3 or 4 xs in them. Is this some kind of method of protecting something? Should I avoid posting full serial numbers from my horns? I did a search but didn't find an answer in FAQs. I originally posted my Cousenon with the serial number hoping that someone might be able to identify the model by the serial number.