What hides behind box cornered by 3-11 7-20 FECO ?

[Andrew Kalinowski]

Virtually any discrimination pattern, including factory presets, filters out the box cornered by 3-11 7-20 FECO. Why? I mean; what kind of trash hides behind these values? Pull tabs and such that I hit on, generally hit higher FE numbers - are below that box on the screen so, that's not it. What else?

 

[Johnnyanglo]

There isn't much in that section other than some bottle caps and other junk. Here's an E-Trac screen of various bottle caps:

 

[Andrew Kalinowski]

Thanks.
Hmm, bottle caps that I hit with CTX are (usually) i bit higher CO and (again) FE 12 and more (FE lower on the screen).
On your E-Trac, they appear to be all over the screen - not enough concentration to block out any specific area of the screen.

To re-fraze my question. IS this area blocked because there isn't anything good there anyway or is it because there is some particularly bad and common stuff?
I've been hunting with CTX for about two years now. Mostly parks and lake shore beeches. In patterns I use the most, I keep that area open and... not really finding anything there. Nothing good but, also nothing that would annoy me enough to remember.