I realize this topic might have already been addressed, but am unable to find it if so. Could those of you who use either of these machines tell me why you did or would choose one over the other? I am wanting to get one for use primarily when wading, but might also use it snorkeling or even diving. I have been leaning toward the Surf Pro PI, but have also seen and read some great posts about the BHID. I would most likely want to go with the 12" coil. Also could you tell me if either or both of these are the dual frequency detectors?
Mike
Mike