If you are looking for a way to secure your x6c I thought you might want to look at
http://www.murphymetalart.com/X6Csecurity.html
I have purchased several mounts from Pat in the past and I can attest to the fact that he aways builds a quality product. I own 2 of his T-post mounts (most versatile mount ever built), 5 of his BTC Mini Mounts, and as I write this have a new x6c security plate on the way to secure my new little jewel. At 12.95 a piece including shipping, it was an easy call for me.