Anyone that has read some of my posts knows the problems I have with high mineralization. There are two Whites DFX multi frequency detectors for sale in my area with stock coil that are in great shape and will be less than $300. Is there any reason I should consider purchasing one of these detectors? Will the DFX have anything that the Equinox is missing? Will the DFX even compete with the Vanquish or the upcoming Apex?    Jeff