edjcox,
The organizing committee will record all finds and the data will be made public for anyone that wishes to review it. One of the requirements for inclusion in the event is to give information about your finds and locations. Whether the archies make use of the data is up to them. I have personally worked on a couple of projects with one of the more progressive NPS archies, Steve Potter, but frankly, most times the "pros" regard us diggers as amateurs and do not use either our services or data.
ngrelic,
This is the fifth year for this event, two digs a year. It is an invitational dig and, weather permitting, you can get up to 33 hours of coil swinging in three days, if your body can handle it

The organizers go out of their way to invite personable, friendly people (I still don't know why I got invited

) and the comraderie and conversation in the field cannot be beat. The whole thing ends up with a massive pulled pork BBQ on Sunday and a "show-us-what-you-found" session at base camp.
ronaldj2,
Have faith brother! The Safari isn't the easiest machine to learn but I am certainly starting to believe it is worth the effort. The soil at Culpeper is horrid, we joke that it is powdered iron and places get nicknames like "Rust Mountain". Signals are very confusing and a target can read several different metals depending on the direction that you swing your coil. Everybody starts the day digging every signal regardless of metal type until they can dial in that particular part of the field. In some fields, everything sounds like iron, even plates!
Just to lift your spirits consider this... Three weeks ago a friend and I were working an area (private property) adjacent to Barlow's Knoll on the Gettysburg First Day's Battlefield. The soil was very wet from several days of rain and conducting perfectly. I was able to locate two bullets at more than 20 inches! The signal sounded like a very deep iron target with a slight chirp at the end that shot up to 33 on the display. It was a repeatable signal so we dug them, one federal three groove bullet and one CS Gardner patent two groove bullet.
Later,
TomH