I've made the upgrade to the normal mining goggles, and I've got 2 sets of crystals, one with a range of 17-2500 and the other set at 339-1661. The left side from what I've read "Should" display every ore possible, while the second one I got it perfectly balanced to have the number at the top to display the frequency of emeralds (1000). Neither slot is displaying ANY ores nearby.