Which coil is your favorite coil and why? I got one with two coils...the elliptical one and the 11" round. I've only got a couple of hunts on the Smart so far, but by far my favorite is the elliptical coil. The 11" one does go deeper...I have a bullet buried at 12 inches in my soil that the 11" will report with a high tone like it should. The elliptical one doesn't recognize the bullet at all. BUT...in both of my hunts so far, I have started out with the 11" coil to cover more ground and depth with...and just couldn't use it. It is very sensitive to EMI...at one site I had normal overhead power lines that the unit would get a whole lot of squirrely with. It made the coil extremely sensitive to bumping into things. Since I was in a cut soybean field, I was dealing with the leftover stalks of the soybeans...every time I would just barely bump one of the stalks...the machine would sound off. I tried reducing sensitivity and that didn't work. I came back to the truck and swapped out coils to hunt a different spot on this farm...and noticed the detector had settled down quite a bit. I went back to the spot under the power lines and didn't have the problem with the unit sounding off by bumping the stalks.
At another site, I started out with the 11" as well...and could only get about 30 feet from an electic cattle fence...I could actually hear the fence pulsating through the detector. I went and swapped out coils...detector once again settled down but I still couldn't get close to the fence.
I didn't set the world on fire with finds...but the sites I went to have been worked over and over by me and other people over the years. I went there to give the Smart a try in some of the heavy iron laden spots. I dug a few small pieces of brass...grommets and such. I was just curious as to what coil most people were using. I think I'm gonna stick with the elliptical one, although the 11" does go deeper.
At another site, I started out with the 11" as well...and could only get about 30 feet from an electic cattle fence...I could actually hear the fence pulsating through the detector. I went and swapped out coils...detector once again settled down but I still couldn't get close to the fence.
I didn't set the world on fire with finds...but the sites I went to have been worked over and over by me and other people over the years. I went there to give the Smart a try in some of the heavy iron laden spots. I dug a few small pieces of brass...grommets and such. I was just curious as to what coil most people were using. I think I'm gonna stick with the elliptical one, although the 11" does go deeper.