There is always the possibility these could be good, chains can act like this from different directions sometimes for instance, a good target sitting right next to some sort of junk might too, but in my experience more often than not these or rarely good targets especially if they are shallow and not at the very limit of your scanning field.
The way you do it is fine, for me I thumb he knob up and then down and listen to how it comes in on every target.
I used to thumb up to the fade out point and look to see where the knob is pointing at first like the manual says, but not long after I went to the go past and back down method and never looked back.
I get way more and more accurate info that way so in my world I would see two signals, one from each direction, listen to the tones as I dial it in and notice where each direction ends up to be then add all of it together to make digging decisions.
It is a much faster process than it sounds, only a few seconds, but I have had years of practice swinging over many thousands of targets under my belt.
That leave the knob at one point and dig everything that beeps way is fine for some, for me it would drive me batty and frustrate me to no end.
As you are learning probably the best advice is to dig a few just see what they are or.... for now you can leave most of them and concentrate on gaining knowledge about the better good targets and the most common trash.
You have time to go back and learn about these signals in the future and they are relatively rare most of the time anyway.
Digging all signals is recommended by many at first but this kind of signal for me rarely gets dug nowadays.
If you are getting a large amount of one way hits that is unusual, if so this could be an effect of your swing speed or not getting the center of the coil over targets...which you should try to do every time.
It all comes with practice and lots of digging, you will figure it out soon enough.
For more info on my high percentage way of hunting by thumbing that knob I explain a lot of that here if you want to try it one day after you get a good idea in your head on how most targets behave.
A little advanced but logical and easy to learn with practice and it works for me.
http://www.treasurenet.com/forums/t...r-27-s-method-thumbing-disc-knob-up-down.html
