I went hunting a couple of hours this afternoon. Went to a Confederate position... Lots of briars where a BushHog had cut down and left about 3-5" sticking up... because of that I used the 1400 DD coil.. still managed to do very well.... soil was relatively soft from a couple of days of rains...some targets were 12+" and hit hard...ran the M6 at zero discrimination...full sensitivity and tone ID.... mostly .58's, round balls, a .69, a real lead pencil, poker chip from a flattened pistol ball, a couple of smaller caliber minnies.... Best to all, RichardnTn