This is why I moved away from the X/Y. I would imagine that a seal matrix, cruciform brooch, and other such wonderful things would give a very erratic shape, and quite possibly a mixed tone dependant on the conditions.
Jerry - when the HF coil is in 14khz, surely this is just a 9 inch coil at 14khz signal? Or am I missing something about the way the white HF coils and V4.1 are set up? Just curious, as a non HF coil owner I'm assuming this would be no different to the black coil on that kHz, but I could be missing something.