Culpepper, VA

I've heard horror stories about the bad dirt in Culpepper. Never been there but have an opportunity to go.
I don't have, or expect to have, a PI machine when I go. I have the F75SE, Deus, AT Pro, and Nautilus DMC II. Which would give me the best chance in Culpepper, and what tips can you give for detecting there using any of these VLF machines?

And just out of curiosity, for those with experience at Culpepper (or not), what other areas in the US rank up there for similar difficulty?

Pleasant Garden, NC
AT Max, Nokta Impact, MX Sport, Nokta FORS Relic, GPX 4800, Infinium, Racer, Deus, F75SE, Nautilus DMC II (order of acquisition, last to first)

Does an archeologist argue with a plow? A bureaucrat with a bulldozer?

I can't tell what machine the guy in this video is using, but he seems to be doing well. I believe the video was filmed in Culpepper, VA.

[youtu.be]

The guy in the video was using a Whites TDI which is a PI.

“Never approach a bull from the front, a horse from the rear or a fool from any direction.”

Im selling my TDI. Let me know if you have interest.