Well my new acquisition proved her wrong. Testing the GTI 2500 in my hunted out front yard for a half hour today and playing around with settings. Hunting in disc with 75% sensitivity pulled this nickel from an honest 12" depth. The key thing is that my yard has been hunted with every conceivable detector over the last 7 years. The coins dried up years ago. I always test my new detectors in the yard just to see what else might be lurking in the depths. So far the Minelabs (etrac, explorer se and explorer II), Fisher G2 and Gold Bug Pro, and Minelab xterra 305 did not flinch at this nickel which came in very loud and clear with the GTI. When I dug the plug with the trenching shovel which has a 14" blade on it I popped the cone shaped plug and tested the hole and nothing. So put the propointer in the center of the bottom of the plug and wallah, the nickel is 1/2" into the plug dead center. So I am very pleased with my purchase to say the least