am interested in the wot coils<does the company have a website,i seldom see used ones for sale ill take that as a positive vote for them.I have read that there is less noise from mineralization with them,does anyone find this to be true.Anyone able to compare them to the sunray 14" coils.I have also read that although you dont get much more depth you get stronger signals in the 7-12" range helping to locate the deeper silver,is there any truth to that.Any insights would be appreciated ty and hh ....jon