I had my F70 out yesterday at the local park searching for clad. This is the second time out with the F70 so I am still learning the machine. I went over a section that I had previously searched with my ML Se Pro. I started pulling quarters out left and right, all of them about 5" down. I found 20 quarters in this little section. Surprised the heck out of me. I was using my Garrett pro pointer to help locate the coins, I noticed every time I got the pro pointer a few feet from the coil the F70 hit on it loud and clear. I did an air test on the pro pointer with pointer turned off. I was picking up the pro pointer up at over 3 feet. I dropped the sensitivity down to 50 and it was still hitting at over three feet. I thought I must a special machine so I air tested a quarter it was hitting over 12" not three feet. Why would the pro pointer hit at 3 feet?