I respect Sandmans opinion and I have learned a lot from him. But we all have our own opinions\experiences. I love the Tejon and I really like my ATPro. I have dug relics in fields with the Tejon at depths that amazed me. Of course having the machine tweaked just right and getting enough experience with it makes a huge difference. I still had things to learn, or better understand, after my first season with the Tejon. My AT Pro has now taken over my hand after my second or third season with it. My favourite field is full of iron, tin scrap, you name it. I find it tiresome to try and discern every signals nuance with the Tejon in a field like that. The multi tone AT Pro is a huge help to me in that regard. My AT Pro is stable when I run one bar below max in town, it gets too twitchy at full bore, although I can run it with no prob. wide open in fields out of town. My Tejon is a deeper machine but the ATP is no slouch either. I use my Tejon for relics and my ATP for coins, more or less. This is basicly how I run these machines.