Hi,
you have two great detectors that make a good combo in the Impact and Deus.
I live in an area with moderate to high mineralization and I do lots of gold prospecting. So the Equinox 800 and XP ORX are my killer combination and are no brainers for VLF detecting.
Where I hunt the Nox will hit 10+" nickels, gold jewelry, lead, brass, and high conductor coins and silver jewelry and give me good solid numbers to the point that I know what I'm digging as far as low, mid or high conductor and I know over 90% of the time exactly what the target is before I dig it. With any other detector I've used here including the AT Pro, X-Terra 705, Deus, ORX, Multi Kruzer, Racer 2, MX7, F19, F75 and T2, the numbers are all over the place past 5 to 6 " (some of those listed will not detect a coin sized target past that depth here!!!!!!) and I have no clue what I'm digging or even if I should dig. I do just as well with a Vaquero or my TDI SL.
So in my area, the Nox is as deep or deeper and the numerical and tone IDs are the best I've experienced. For your area where the ground may be milder there may be little or no difference. I would check out Calabash Digger's, Square Nail Squirrel's and Gigamaster's videos for comparisons in similar dirt to yours. I love your videos too. You have made some great finds..........that $5 Gold Indian = OMG!!!!!!
Jeff