I was involved in trying to look for a very valuable ear ring that was lost in a short grassy area,Two friends one with an etrac the other with a new ctx had tried to find this item with no luck,After a few hours searching they placed the remaining ear ring on the ground and would you believe there was no responce at all in either open screen or dics modes.As I have an Xterra that are very sensitive to an metal I was confident in finding it,but a quick sweep over the existing ear ring,and hey also no responce at all and that was with no discrimination and also in gold mode.The item is clearly marked 9kt and is white gold surrounded by small diamonds,has anyone else had this problem.Also makes me wonder what else I am missing.I know that between the three of us we have talked it over and we are ground balancing etc correctly,maybe it is just the shape of the item even though we have tryed it lying down and also on its side..........a pic is included.....HELP.....KJ