There may be something to the big coil... I have had 3 ctx's and 2 etrac's. I have a tough separation test bed. A dime at 7 inches at the base with a big crusty nail 1.5 inches off center 2 inches above and then a pull tab at the edge of the plug at 2 inches from surface. All this in a 6 inch round plug. I did not have a large 17 coil for my ctx's all i had was stock and the 6 inch coil. I could not get my ctx to sound off on the dime with either coil, but i did get a solid ID number with the stock coil but no sound. With the etrac i could not get a solid ID number or sound with a sunray 5.5 coil, 8x6 sef, or the nel sharpshooter, but with the stock coil i could get a solid enough ID and tone that i would have dug the target. I wish i would of had a large coil to test on it to see if it was even better. I was always under the impression that the smaller coils separated better , but with FBS i think the larger DD coils may be actually better. At least with my Etrac it was. I know someone will say well the dime was too deep to begin with for the small coils,,,, but i also have a dime at 7 inches with no trash and i could get it easily with ctx or etrac and small coils in my soil. I would like to know what you guys settings were if you don't mind posting them? I have located a used ctx that is being fire sold and i may pick it up.
