There will be a bit more difference in Ferrous because a dime and quarter signal vary more in the X-axis (left to right) than they do in the Y-axis (bottom to top).
You probably already know this but for any newbies:
In Conduct the tones vary in frequency from the bottom (low tone) to top (higher tones) of the screen. Any target that shows at the same height on the screen will have the same sound, whether it is a nail at the extreme upper left or silver half at extreme upper right. A Nickel or bottle cap that registers farther down on the screen will have a lower tone.
In Ferrous the tones vary from left (low tones) to right (high tones). Now the nail in extreme upper left will have a low tone, and the silver half in the extreme upper right a very high tone. Easy to tell apart. Unfortunately now the bottle cap in the extreme lower right now sounds alot like the silver half.
So...
I usually hunt with an open screen- no discrimination. If I am hunting in an area that has lots of iron trash I always use Ferrous sounds. If the trash is more likely pull tabs and bottle caps I'll run in conductive.
If you are using some discrimination or iron mask so the upper left part of the screen is blacked out it is easier to run Conduct more often as the nails and other common iron trash is discriminated out.
Another thing to keep in mind is that the audio signal on the explorer responds more quickly than the target icon on the screen. Often what you hear and what you see on the screen seem to contradict. Sometimes this is caused by iron falsing, sometimes because there is trash and a good target buried close together. The whole, er 90% of the trick to becoming proficient with the explorer is learning to tell the difference.
Hope this helps
Chris
