When I go detecting here whether its for coins, jewelry, relics or gold nuggets, I am detecting in moderate to high mineralization caused by high levels of magnetite and volcanic material in the soil in my area. I have been hunting in these conditions for years and detectors like the Equinox series, Manticore, Deus 2 and the Nokta SMFs have really made a huge, very positive difference in these conditions compared to using them in a single frequency or using previous single frequency or earlier tech SMF. I also still on a Vanquish 340 and 440. They cannot be ground balanced to work effectively in the soil conditions here but when they are able to hit a less challenged target cleanly, they do it very well.
Step 1 for detecting edge of detection or really small targets in this kind of soil conditions is to accept all target responses, period, end of story.
If I disc out iron and turn off iron volume, any non ferrous target nearing the edge of detection that has target IDs pulled or lifted (iron wrap around) into the the iron target ID range will have very iffy audio responses at best.
Doing testing on a Nokta or Minelab SMF detector with part or all of the iron target ID range rejected will cause issues no matter what program or other settings are used.
In the first video, the Manticore has iron audio and iron target ID responses rejected. Those iron responses are still visible in the upper and lower ferrous limits. The Nokta Triple Score also has several iron range target IDs rejected which stops iron audio responses corresponding to those target IDs and attenuates audio responses from nearby target IDs and from a target that is experiencing iron wrap around creating very iffy to very sporadic audio and target ID responses. Switching the Triple Score to a single frequency automatically turns OFF all iron filtering and allows more target IDs near the ferrous/non-ferrous tone break or really high target IDs nearing 60 to be heard much better. I know absolutely nothing about the Rutus Versa, what its default settings are or how the video maker had it setup.
In the second video, David has Deus 2 setup with iron volume on 7 but he has the Manticore setup to reject all iron range audio and target ID responses. Definitely not Apples to Apples settings.
Step 2 is to lower all SMF necessary iron filtering to their minimum settings.
Step 3 is to keep recovery speed/reactivity at medium levels. Raising or lowering them drastically will not help one bit.
People including me, unintentionally overlook important settings or just screw up when making YouTube videos. It happens and has nothing to do with truth or honesty.
I would welcome any improvement in high magnetite mineralization via a software update for any of these latest SMF detectors.
Here is a video I made several years ago featuring the Nokta Legend 1 and Minelab Equinox 800 using similar testing methods including iron disc pattern changes that relate to the two videos above. It's about 12 minutes.