I know the 6.59 kHz Bigfoot coil for the XLT works well on the XLT as I have tried one. Will it also function properly on an IDX? The XLT has the absolute value function to allow for the unique properties of the coil, but the IDX doesn't. Just looking for info now. Love my new to me IDX. In fact a local electronics shop is doing the Mr. Bill mod on it right now. As I hunt quite a few athletic fields, the Bigfoot may be worth the investment.