after a week prakticing pinpointing its much easear and the sounds it makes , I am now ready to go back to that old house and kick sum but . What i have found pinponting in disq is when you hear the sound , lets say you are swinging to the right by the time you hear the sound the left edge of the coil is right over the target and when you revers it its on the other very easy nails are the hardest to pinpoint but i went out in all metal and just dug a bucket of them and got that down to Gunnar in minnesota