More than welcome.
Just love that coil myself. Feel it's a sin not to be using one on a Sovereign in a way (IMO).
Cool to hear they'll order more in batches of 20 until the sales slow down on them being that the GT is no longer made. With all the Sovereign models from the original on up to the current GT floating around out there, since this machine has been made for years, and along with the Excalibur still being made that is coil compatible, I'd expect there are probably more coil compatible BBS machines out there than many other machines as potential customers for a BBS compatible coil. Wonder if they plan to order another batch of Ultimates? Called the other day and only 2 in stock and both were returns that weren't working right, so I'm out of luck on putting one of those on lay away with them. Going to have to find one used or look to other avenues to get my hands on one to replace the loaner I had if Kellyco won't purchase more. Not sure how fast those sold for them (the last batch they got), but if all else fails maybe down the road we can get a group of 10 together with pre-orders for a coil as Kellyco said I think they'd be willing to do that to have another shipment be shipped out to them of a Sovereign/Excalibur compatible coil.
The 15x12- Owned one for a while. Great coil. Very stable like the 12x10 in EMI and minerals. Lighter than the 10" Tornado if you ditch the coil cover and use spray on bed liner. Weight wasn't a problem to me with it. Coverage was fantastic for fastly gridding out areas. The left/right separation is also a wonder for such a big coil. Problem for me though was it didn't seem to get the depth of the stock 10" Tornado in my soil, and often I had to lower the sensitivity much lower than max stable with it to seem to get better IDs at depth, as I suspect it was sucking up too much of my minerals to show gains in depth on coin/ring sized targets in my soil. In the sand though, which mine is mineralized too, the 15x12 did seem to get deeper than the stock 10" Tornado on coin/ring sized targets. The 12x10 though seems to be deeper than both of these coils in both my soil and my sands.
The official field report for the SEFs found the 15x12 was deeper than the 12x10 on about roughly targets bigger than a quarter if I remember right, but that the 12x10 was deeper on dime and sub-dimed targets. That may be important to some when old coin hunting or say after rings or other jewlery on the beach, but I was impressed with the sensitivity of the 15x12 to small targets too. Always heard/experienced that about max coil size in a DD to see gains in depth on coin/ring sized stuff was about 14" in size, and always heard/expereienced that in a concentrix that max size for coin/ring sized stuff was either 10.5 to perhaps about 12" in coil size.
All these things are dependent on minerals though as to the coil size limits to see further gains. I've read of some saying the 15x12 showed them gains over the stock 10 or 11" coils on their Minelabs on coin/ring sized stuff. Just didn't pan out that way for me in my soil, where I suspect either a *round* max DD coil size for me is probably either 12 or 13" in total size to see those gains. Might even be a 12" round coil is beyond the limits for my soil, where as the 12x10, being that it's not round, is riding on and seeing less ground in the general width wise aspect, so it's showing me gains. As a side thought, don't confuse it's smaller width than a round 12" coil to mean it gets less coverage. The DD line goes from the tip to tail of a DD coil, so every sweep is like a wiper blade scanning a full 12" long.
If the 13" Ultimate didn't exist then I'd want a 15x12 for large wide areas where I just want max coverage and not so much concerned about max depth in a situation like that, like say a huge crop field. But to me the 15x12 is too much like my 12x10, so that's why I want the Ultimate for being "different" as another coil in my line up. Or, if I get my hands on a WOT to try out some day I might end up wanting to use that over the Ultimate for those big vast areas.
On my light weight land rig, I'm using those Whites carbon Fiber Tall Man lower rods for my lower shafts. I've got two for fast coil swapping since then the coil can stay on the lower rod and its quicker to change them. Now I wish I had 3 or 4 of those Tall Man lower shafts for other coils as well, and may pick up a few down the road here. They used to be $10 directly from Whites but I think they are $20 now maybe.
If you didn't know based on your remark (?), the control box clip for the GT/Elite can be used without the arm cup to hold it onto the shaft. Very easy to do. Replaced the stock over half pound arm cup with a $10 Whites heavy duty one that is much lighter. Without going into that, there is a thread link in the Sovereign accessories sticky on all the easy how-to stuff people figured out for building a light weight shaft real fast and such. I hate hip or chest mounting on land so I built me a shaft that dropped about 1.5 pounds off my GT's weight. It's now a bit lighter than an MXT and feels much like a Whites to me in comfort/hardware friendly types stuff. Here's a youtube pictorial I also did on all these easy mods, along with a remote PP switch and such...
http://youtu.be/vvkeNKPYsgA
