Years ago when I started had many unexplained thoughts..Unfortunately in those blocks added for the
jewelry mode also comes a lot of junk. So if your after coins , go with the coin mode, want to experiment go with the jewelry mode and dig all and it will probably explain it more throughly. Indeed silver coins are not seeded but many gold rings are lost each day. Fellows have worked out many ways to increase chances for gold jewelry. Usually a park will be loaded with one or two tabs, just notch them out and although you could miss a nice ring you will dig less and increase chances. For what its worth average gold ring just hits stronger and migh want to try some experiments with some gold rings aginst tabs etc. as it will help. Unfortunately gold rings cover a lot of the meter blocks and those that try get those nice gold rings walked over by mny detectorists.