I have another question about larger coils for the Sovereign. I have decided between the WOT and the Sunray 12". I would like to know does the WOT get more depth than the S12 or would the advantage over the S12 just be more ground coverage. Also would the S12 be more sensitive to smaller targets because of its' smaller size or do both coils have have about the same sensitivity on small targets. It will mostly be used for lake beaches. Thanks for your help.