Re: what's your experience with high school football fields
It's about focused effort on athletic fields. With football fields, certain areas will be better than others:
Around Concession stands
Funnel points at entrances and exits
Under the older style bleachers
Areas where kids tend to congregate.
Some spots you might not think of:
The shadow areas where the "black sheep" kids hang out
The goal post area
The center of the field at the 50 yard line
The sidelines where the teams are during the game.
Visit sometime when the stadium is full, during a game or track meet, etc. Learn where people go and where they are the most focused - that is always the key to finding anything with a detector. Learning to watch people go about their business is one of the most imprtant techniques youll ever learn.
However, keep in mind that if you are an elitist detectorist, one who "can't be bothered" to recover clad coin or modern trash, then a football field isn't for you. Also, a good sniper coil will be a needed part of your arsenal, as you need to do a lot of work around trashy areas. However, some of my best JEWELRY finds have come from athletic fields, including football venues. That should tip you off as to why you should bother with such places, at all.