Once being an GTI2500 owner I found it too heavy for a full 4 hours hunt after injuring my back in an accident. So, I went with the Minelab craze and got one of their models for around a thousand bucks. I fought it for several months and never could acclimate to it The sounds it made were Greek to me so I laid it aside and finally sold it. Then the ATPro came out and I think it saved my bacon. What little time I had to put it to the test was refreshing. The sounds made sense again and the two modes were great. I also had an ACE250 that I once said was the only detector I wouldn't sell or trade. Now there are two. I have been laid up for a spell and haven't been able to get out and hunt like I usually do and I am going nuts not being to use my new Pro. I think it's a keeper. Oh, and PS, I had lost a half dollar in my coin garden that I had buried very deep (10") for testing depth on my various machines. I finally found it with my ATPro! I'm a happy camper as you might have guessed. Onus