Here's a quick video of my Deus with the HF 9" round and 4.0. I've been having great luck at an old school house on my farm that I've been getting skunked on coins for the past 4 years. The last 3 hunts I've turned up 12 coins including 2 silver. To me these results were impressive.
https://youtu.be/GKkw3O2-iVE
https://youtu.be/GKkw3O2-iVE