I've wondered about this topic myself...then, after reading a lot of posts, I determined there are few silver coins where i'm hunting. Seems the guys that really focus on old silver, do a lot of research, go deep and slow, and generally pass on anything but deep silver signals. Then you read some posts about how there are detectors or a different smaller coil that can unmask silver next to a nail, and think, maybe I'll get one of those? Then, I think its an awful lot of fun just going after any and all signals, getting good with the machine, and accidentally tripping across an odd silver every once in a while, some surprisingly shallow...I do tend to concentrate in areas where I find a wheat penny, and try to slow down and listen. One of these days you will accidentally stumble upon a plot of old dirt, and those silvers will be there waiting for you!
Mud