Seems to me that someone posted pics of a tree that was almost identical....even the"X". Perhaps on Old Dogs thread. I'll scour around and see if I can find it.
KGC? Perhaps, but it would be a rarity if they used virtually identical markings on two different trees unless it was the same individual...or even stranger, the same tree. I'll look around and hopefully find it to pass along.
Welcome to T-Net, Stoneside!!