Are the “super” or “hot” coils that are advertised any good? Why don the detector manufacturers make them?
If you look at the ads for those “super coils,” you will see that they are usually one inch greater diameter than the standard coil offered with the detector that they fit. Being one inch larger means that they will have marginally better depth for the typical targets. All manufacturers make extra size coils for their detectors. If your detector, for example, came with an 8-inch coil, why buy a 9-inch “super coil,” if you can get a 10-inch from the detector’s manufacturer? The manufacturer of the detector knows a lot more about making coils for his detectors than the guys who build the “super coils” and they generally sell them for less money.
