Just a guy who has been detecting for 34 years. I suppose some of what I read and studied over the years stuck, but somedays it seems I forgot more than I remember! I spend a lot of time researching (and coin hunting) old abandoned sites where people gathered 100 years ago. But, there are times that a trip to the local "pull tab park" is fun too. That is why I asked about the TR mode. Looking for a better way to sweep the XLPro in a real trashy area, without losing separation characteristics. It has been a long time since I even had my XLPro turned to TR. I am anxious to put on the 350 coil, tune it to TR and give it a go! HH Randy