In pinpoint mode, what types of targets cause threshold breaks? Obviously, all of them, which is my point. Now this isn't a real issue on clean beaches but on trashy beaches, such as after a storm, or on beaches that possess a lot of black sand lines, etc., that threshold is never stable and it is constantly changing, this only being magnified when running the coil hot with high sensitivity, this also increasing the size of coil footprint and target footprint, now even faint halos can cause threshold breaks, as can targets outside the coil footprint, not to mention that your recovery time can also become much slower. So now let's increase the coil size and see what happens, obviously the situation can only get worse. By dropping down to a smaller coil you can still run a hot coil, in disc mode, and achieve the same "efficiency and depth" without all the constant interference in the search field and threshold that can mask a lot of faint/quick targets. Hold an iron nail over a quarter, or next to it, and swing them under your coil in pinpoint, then switch to disc and see what you get....you still get a null, or at best, a burp that won't repeat regardless how many scoops of sand you remove, and so you pass it by. Reverse disc and larger coils are only effective on clean beach environments, beyond that you can achieve the same efficiency in disc mode. This is my point, not arguing that in really good environments that I don't hunt in PP mode, I just seldom have found myself in those stable environments. Unstable environments are the same a trashy environments and too much trash/interference in the search field can, and will, mask a lot of good targets. We all know this.
