We both know the pros and cons of coil sizes. Wasn't really looking for that kind of information. Both of us have owned a variety of detectors and coils over the years, but he just bought an M6 and I'm considering one to add to my lineup, so we need some input on the coils available for it. We have some sites with low trash and very deep coins where it's not unusual to find a rosie at 9" and older coins even deeper. Places like this require a larger coil if you are going to down to the silver zone. I'm asking which of the larger coils out there seems to offer best depth on coins, not the pros and cons of small versus large coils. Basic question.
I'm thinking the Spider 12" concentric might do well in ground with low mineralization, but I'd like to know how it compares in depth to the large round DD Excelerator coils, or even the SEF 10x12 or HotShot. From what we hear the 10" Whites DD doesn't offer as much depth as the Excelerator 10"DD, so that's out.
Pretty much what it comes down to is this. He can get a Whites coil, bullseye probe, and bag for $99 for his recently bought M6. He can't pass up that price even for the coil alone, let alone the other extras, so he's faced with a choice. If you had to pick one Whites coil that performs as good as it's Excelerator counterpart in that size range which would that be? He's planning to buy a third aftermarket coil down the road and so he doesn't want to buy a Whites now that will be a duplicate in performance. He's wanting a small coil for best seperation (depth is not even a factor in that choice, just best seperation), and a large coil for best coin depth. If one of the small Whites is as good as it gets for seperation he'll pick that up and buy a large excelerator coil later. He mainly doesn't want to say opt for the Spider 12" Concentric and find out later that one of the Excelerators goes deeper, or buy say the 5.3 or 4x6 Whites coil and find out it doesn't seperate as well as one of the small Excelerators. That's where we need some advice from people who have compared these coils on the M6 or MXT. Which of the Whites (big or small) is as good as any of the aftermarkets for either seperation or depth?