Hi DBULL,
When I first bought my Sov GT, the tones were very confusing and nearly drove me to drink and I really thought I had made a bad decision in buying the detector lol
( I would later learn it would be the best detector purchase I ever made) So I bought a sun ray meter and this helped big time in figuring out and learning targets beneath the coil. I feel it can do the same for you. I keep the the disc and notch (for the majority of the time) at zero. Right now, keep the sensitivity in AUTO until you learn the detector. (at least this is what I did) Now I fiddle with manual sensitivity and does make a difference. But it can also confuse someone ( like me

) as well if just beginning to learn the detector.
In junky areas a meter can really help ( it helps me anyways) in dicipher tones when they are real close together. Last week I was hunting in an iron infested junk hole and in the midst of all of it, I catch a glimpse of a mid-tone ( it shot up to 146 on my meter) and I was able to work the signal / isolate the best I could with the sov wiggle, then dug. I was rewarded with a V nickel from the late 1800's. Part of the date is worn (it is either a1887 or 1897) point being that "glimpse" of a tone and meter reading made me investigate further. To me, if I didn't have the meter, I may have not of dug. Not that I rely on the meter, but I do use it as a "second witness" when the first wasn't too sure (that's really me) of what was "seen" ( The first witness being AUDIO and with my hearing loss, I NEED a second witness - the 180 meter )
At this point since you have your learners permit, ( I still have mine too lol ) just start digging all the nice solid repeatable signal and learn what the objects are and what they sound like. Hope this helps. Most of all, have fun and happy hunting - Jim
P.S.
If you don't have the manual you can download it here and save to your computer.
http://www.minelab.com/__files/f/10475/Instruction%20Manual%20Sovereign%20XS.pdf