Hello everyone I need some help!! I bought a used Whites Classic IDX and been trying to use it at old house sites with tons of nails and it has been driving me nuts. Should I go with a smaller coil? How good is this machine? I am having the nail problem and was wondering what can I do to help me hunt these sites. The nails are driving me nuts especially since I was using a 9.5 coil and I was having a hard time seperating the tones. I would really appreciate hearing everyones thoughts for my problem that I am faced with. Should I get a better machine or is this machine good enough? Thanks