Guys I don't use the detector you do, but I have got 4 gold rings this year and it is just Feb. . I have about 500 rings in my hunting time, about 20 years, and find that the VDI's will be locked or just one or two # jump. I also dig a lot of pull tabs, but a ring will just sound better and not jump as much. Once you get this down in your brain, you can tell rings from pull tabs, not always but most of the time. If you have some rings lay them down with pull tabs and go over them with your eyes closed, you can tell after awhile what is what. Try it it will help you in the long run.