Matt hastings

Hi all im in nz. I think there are 3 of us here that run the tarsacci. I was told by dimitar that mine is running the nz coil. I too seem to have worn out my welcome with him too. I dont think he has any real knowledge of the black iron sand here in nz. Its harsh. Some places you need to swing 3 inches plus above the sand. I have hundreds of hrs now on our black sand and while it does find stuff i feel there is no real depth to it. Any help on this would be greatly appreciated Matt