sorry if this is something that is obvious to most guys on here but i thought i would share a recent experience that could save some time and effort. I recently lost a collar in a deep sandy set, the ferret came out of the hole and once in the box i set about the short task of locating the collar and digging it out, or so i thought. I located the collar and X'ed the spot where i thought it was, i set about digging down to the 8ft mark as per the mkIII display, thankfully it was sand. Once i broke into the hole i couldnt quite reach the collar that i was sure was just up the hole to one side. A