It’s all new to me. The vdi is the only thing that’s close to my old detector. A friend has a 800 so I asked him a lot of questions and read what I could find on the web. What I’m doing now is I use 5 tones because that’s close to my old machine. Out in the open areas I’m run field 1recovery speed 4. This seem to be about the same as my old machine. Where the 900 shines is in the nails. I’m using field 1 recovery speed 8. I started with the small coil, when my first day. Changed to the 11” coil and have had so much success I haven’t had to change. When I’m in the nails I have been going very slow. Been checking every little squeak. I’m digging everything that isn’t a nail signal. Hope this helps. Just get out and start swinging.
