Location. For sure. It was 1980...
My Mentor took me to a school to try out the brand new detector I'd made him take me to buy the previous day. It was a Whites 6/DB...He swung a Whites 5000. I'd spent $350...which, back then, was more than half a paycheck. Wife was "thrilled" with that. 😠 Anyway...this school was 60's-ish and located on a state highway...so he surmised it'd probably been hit before, but that I'd find some clad and learn my machine a little. By the time we'd gotten 10 feet off the asphalt, our pockets were bulging with coins and other trinkets (cheap rings, earrings, pins, etc.). We began walking up a slight slope toward the highway and BOOM! Silvers! Lots of them! 😁 I ended the hunt that day with 18 silvers and Tom had 22 or 23, I think. 😱 I had one plug with 2 SLQ's and 5 GW's in it!!! In the next month, that school paid for my detector 10x over! We'd eventually found out the school property had been owned by the church next door...which was almost 100 years old. The slope was their old sledding hill...and the school grounds is where they held socials and such.
So, yeah...Location, location, location! 😂