Rebel2, just to be clear, you are finding a target in one of the Disc. mode, then going into Pin-Point. When you do, you are moving the search coil just off to the side of the target but near the g4round at the search height, correct? Then pressing the Pinpoint button and moving the coil back over the suspected target spot, correct? If so, the Simplex + is functioning properly.
Do NOT raise the coil in the air and press the PinPoint button and then lower to coil towards th ground. That will niot work, especially if you have a slightly positive Ground balance.
That brings up point #3 which is, are you using the Automated Ground Balance function to GB the detector prior to your search? If so, good. If not, then it will turn-On with the default Ground Phase of '90' which, on the Nokta / Makro devices, is almost always going to be a rather positive GB and will give a loud audio increase if you go into Pinpoint with the search coil raised and then lower it toward the ground.
Just remember, search in the silent-search Disc. mode you like, and when you locate a target. keep the coil at the same height (roughly 1"-2" off the dirt) and go into the PinPoint function, and move the coil bask over the spot to better isolate and Pinpoint the target. Never raise a coil to go into PP and then lower it.
Monte