I have been bouncing back and forth between the White's DFX and V3i for many years. In theory the switch to V3i should be a no-brainer. However, the original Vision model I got had bad EMI issues in Anchorage, Alaska, especially with buried power lines. When the V3i came out I tried again with no joy. When I moved to Reno I tried again, and EMI was less a problem. The next issue is the main reason I have a DFX is to run a BigFoot coil. Most coils need to be tuned for the specific detector o