Might be hard to find a used one because they are still really new. IMO, the 6" round coils seem to go a little bit deeper than the elliptical, but the coverage per each swing is very lacking. I can get only about 6-7 inches with a good reading with it. For some strange reason I've had some record nickel finding days using the Coiltech. About every time I use mine I find a nickel.
Thank u sir, I did have the 6 and looked it but sold in hopes to find a coiltek. I jest wanted better coverage and many people prefer it over the 6 but man its pricey
Kind of a toss up for me which one I prefer- 6" round or the elliptical. If I had to choose, I would probably have the 6" and use it only when I wasn't going to swing it much. They really need to have an 8" round coil.
Oh, another thing I found with the elliptical is that it seems you can get closer to large metallic objects (side of houses) without interference. Seems like it allows this even better than the 6" coil.