I've been using the ultimate coil off and on for about a month now. It is a bit heavier than the procoil, and the 10x12 coil too, not a lot but about an ounce heavier than the 10x12 (which can seem like a lot if you're not used to it and plan to hunt for several hours). When I first starting using the 10x12 (which I love and it is my go to coil on most sites), it too seemed heavy after swinging for long periods. Once you've used it for a while, you get used to the weight and it's not a problem. I suspect that using the ultimate will be the same. Now, I have found silvers (4 total I think) and a few bullets, plus sundry other targets that I don't really keep track of, with the ultimate that I didn't find with other coils. At least a few of those targets are ones that I know for sure I've been over with other coils BUT, with the exception of the bullets, none of them were surprisingly deep. The ultimate does seem to hit well on some targets that other coils have missed. I'm not sure if they were missed previously because the targets were on edge or close to trash, honestly couldn't tell you. When I dig a plug, I do it as quickly and as efficiently as possible and I seldom have time to analyze how the target was situated in the ground. The other day I found a 1900 barber dime with the procoil that almost certainly has been gone over by other hunters and other coils in the past. It was only a few inches deep but it was very close to a larger piece of metal that gave an overload signal when I passed over it. Could be that I just hit the dime from the right direction, or it could be improved performance of the ultimate coil....not sure. The signal wasn't the best signal in any case and if I had guessed what I was digging before I saw it, I would have predicted a clad dime or wheat penny rather than silver. My opinion of the ultimate coil? Well, up until a few weeks ago when I dug some deep bullets with it (and one was right next to a big piece of rusted iron), I had strongly considered selling it. I have a plethora of coils to go with my etrac and I wasn't sure it was worth the price tag for me to keep another in my arsenal. But I've decided that it's a keeper afterall though. I can not swear to the fact that it hits targets any deeper than my 10x12 (which I've found stuff up to 12 inches with). I've not found a lot of deep stuff with the ultimate yet but that may very well be due to the "have to put the coil over it to find it" factor rather than a performance one. I don't really have extra hunting time to switch back and forth between coils to compare how they do over the same targets, but I am getting the impression that it is hitting targets that I've missed with my other coils. My favorite coils are the sunray x-5 for very trashy areas (I regularly pick out targets in areas that other detectorists have missed), the 6x8 sef for brushy areas where I need to get around small trees and weeds, the 10x12 for regular hunting (although I will switch to the procoil at times if I'm getting a lot of null with the 10x12), and now I will use the ultimate coil on older sites that have been "hunted out" and I know should still have good targets that others have missed (after, of course, I've probably gone over it a little with the 10x12....). Happy Hunting and I hope this helps a little.
