I took my vaquero to a site that I have detected for the past 10 yrs. It is in a farm field where an old homestead once stood. The site is covered with lots of iron, so it can be a challenge to hunt. I had the stock coil on with the disc. at below nickel, sens. at 9 and threshold a slight hum. Seems like I can always pull a few coins from this site. I find what I can at shallow depths and than wait for the next year after the farmer works the ground. I know some will think I should dig all the iron but I would need a dump truck following me around to dispose of all of it.