The designations come from very personal experiences, and/or names of people that they wish to remember for one reason or another. As to what they mean, well, they are personal to Mick and Duane. They choose not to share the strories and explainations in public because it IS very personal to them. Just accept the fact that you might not know what the designation stands for, but it is named after something or someone worth while. Please don't ask on these forums over and over for an explaination. It's not worth it.