Coil Covers: Yay or nay?

[ArfieBoy]

I have always used coil covers and always will. I have a couple of older detectors that don't have them but their manufacturers are out of business and I haven't been able to find any for them. So if I do use them I try to be very careful with them. Back in the old days most detector manufacturers recommended "scrubbing" the ground with your coils... and a lot of guys wore holes in their coils.