Swing as fast as you want. It will hit hard on any coin that is there, silver, gold, whatever if you have the discrimination set right. No interference from other detectors. Did great on the deep hunt. I didn't slow down my swing speed at all and the targets still hit hard at 6-8"s. In my opinion, if Fisher had a 8" concentric coil that could pinpoint better than the stock coil, the F-75 might be the best machine for competition hunts.
I'm sure glad that I got the machine back from being serviced in time to use it for the hunt. My hats off to Mike Scott and the service dept. at First Texas.
I'm sure glad that I got the machine back from being serviced in time to use it for the hunt. My hats off to Mike Scott and the service dept. at First Texas.