hi all, just after some opinions on when to dig and when not too with the atx.I got a signal the other day in the vic goldfields, it was a good signal and when i ran the discrimination over it it grunted, I decided to dig anyway and got down about a foot in very hard ground in very hot weather, the machine still grunted as if it was junk.....my question is ......is it junk, should i keep digging....i thought the descrimination feature was only good for shallow targets,.....is there a possibility that a large nugget would cause the machine to grunt on deep targets, thats my fantasy anyway lol.