I am going to Melborn Florida soon and was wondering which coil would be best to use. I do not think their is alot of trash in the areas I am going to search. I have been there before and did not encounter much trash at that time. I was wondering if the stock 9.5 coil would search deeper as well as cover more area. Or if the 6x9 coil would be bettet. Please give me some input please.