Work the coil carefully around the target at least 90 degrees waggling the coil rather quickly in six inch wide swipes. Dont use pp button (yet). Listen and work the center of coil over the target til its loudest with shorter swipes say three inch waggles but keep turning 90 degrees you want to X the crap. Try it on clad laid on top of clean turf its easy to X a target with atpro or any machine without pp button. Envision the center of target at the loud point of the center of the coil at the point of intersection of an X centered over the target with sweeps at 90 degrees. Get the target to be loudest with waggles and that's where it is, intersection of X and center of coil at the loudest point its like the ultimate climax of tectin its the first skill needed, a marriage of man (or woman), machine, headphones, coil, target, geometry and brain. Don't be afraid to walk completely around the target it helps but 90 degrees is enough when you get the hang of it. You are trying to "see" the hottest spot of the coil over the target using an X and remember that certain blade of grass or stone or piece of sand or whatever it is you see at the intersection of the X so you dont scratch crap when you dig it. Nails you cannot get too good a bullseye with pro 11" even with the pp button but concentrics take care of nails easy. If you cant find a target with atpro its a nail. But pull tabs and crowns and coins and rings and tokens and washers and foil wads and brass and copper and lead crap like bullets and shotshell bases and 22 cases and fobs and watches and buttons and shoestring eyelets and such will certainly be dead nuts with waggle method, I always get the target in the plug quick. Now if you really wanna grab the bull by the horns and pp dead dead dead dead nuts with a atpro or any decent machine especially deeper stuff try this: Get the coil as close to where you think the target is and press pp button and hold and move coil center over area until LOUDEST in two directions 90 degrees apart. You will be close but then release pp button over the spot where you think the target is and then press pp button again which detunes the tecter and makes it less sensitive so you can work the coil even closer to the center with little short X's TO FIND THE LOUDEST POINT within say two or three inches and if you must, go whole hog and DO IT AGAIN and you will be super dead nuts pp'd to the max a laser could not get closer. Machines usually run in three cycles of detune before they pop back to full sensitivity mode so dont push it too much. You will be able to get the coil to give just the faintest hum over the target within a two inch circle on deep stuff say 6, the audio will actually drift off to zero if you run the coil off too far from the target say even one inch, especially on deep coins. You will increase accuracy of deep coin diggouts if you use the pp button but you are bound to gash one occasionally. Shallow stuff no need for pp button.
