I have not read anything here I would disagree with. I put the 5X8 coil on last April, it hasn't come off yet. If I was starting a field or large area, I would probably go back to the larger coil, for a larger area coverage per swing. If you like this hobby, and get out a lot, the only negative I would see in buying the 5X8 coil is just the price tag. To me, it's like adding more depth (capabilities) to your team. I have also read that the 4.5 inch sniper coil is deadly in severe trash areas, this will most likely go on a Christmas wish list for me, as I've spent my detecting budget already this year LOL. I agree that the stock coil goes deeper, covers more ground per swing, but being an old, out of shape, fart, I can swing the smaller coil, much longer. More time swinging coil, more time finding stuff. It doesn't matter how deep another coil/unit goes, if it weighs too much for me to swing more than a half hour. If the price tag of the new coil is not a significant issue, get one, try it out, see how it works for you, let us know. Just like different people like different detectors, same with coils. I'm putting acquiring some waterproof, grey ghost headphones, over getting the sniper coil, but both are on my radar. Good luck, keep us posted. Artie