I have a 3x2x2 area of sugar sand that I cleaned out with about an inch of topsoil the rest of the test area is 6 inches of small chunks of coal with ash, slag and topsoil its thick and crunchy getting a shovel in, power lines are 50 feet away. The Core came with the new download, it was absolutely quiet which none of my Whites could accomplish in the coal and EMF without lowering the sensitivity and jumping through a few hoops to get them settled in that in itself was impressive. My test garden in the sand area is a large cent at 16 inches, a silver dime at 12 inches, silver quarter at 12 inches. In the coal area a v nickel with a rusty nail at 8 inches a silver dime at 10, and a copper at 18 inches. After 5 days of getting use to and trying all of the possibilities I settled on multi IQ, all terrain general with the ferrous sound at 1, pitch 1, 5 tone. I was able to take the sensitivity up to 33 and it was quiet, outstanding. All targets where recognized knowing where they were if I was just swinging I would have missed the dime at 10 and the 18 inch copper in the coal. The VDI numbers were lower on the deep copper and large cent, the 10 inch dime was scratchy through out all testing and the VDI was jumping around the low side probably has a large piece of coal in the hole with it. The 12 inch dime was only good in one direction. The V nickel with iron was neat to see as it painted correctly in one direction. I back loaded to the original stock settings and found it to be more chattery . All targets were slightly clearer, the 18 inch copper would have stopped me and the scratchy dime came in much clearer with a better VDI. Hopefully the original and updated version are as simple as a button push. My hunted out never hunted out places were waiting on a deeper machine. I did not run my DFX with a 13 inch coil in the garden as the EMF is bad. I did run the chattery MX7 through the garden with a 10 inch DD it found all the targets but the 10 inch dime. I really didn't think about coils when I purchased the manticore, the small coil would be great in iron patches but to get down deeper I was hoping to see a bigger coil for those deep plowed fields than a 12 inch coil 12x15 not a lot of depth over the stock coil for the money but better coverage I would think both field and beach. I do like my first ever Minelab its a pleasure to swing and well thought out. Cant wait for the Fall to get it out in the field. To the beach I go.