Don't underestimate that little detector my daughter started on that one, we still have it and it has found stuff 8 inches deep. Read the manual but for real quick advice, switch the coil back to the bigger one for depth, turn the sensitivity up almost all the way until about the 4 o'clock position, your discrimination leave it off but down at the bottom you see the button reading auto notch..push it and it will automatically take out trashy finds for the most part, no machine is fool proof. Make sure you keep the coil flat..parallel to the ground about an inch or two at all times, don't chicken wing it,means swing it like its a pendulum. I hope I helped some.i thought from your first picture it was a quick draw but wanted to make sure, I knew I could help u if it was. My wife and daughter like to use it because its light weight. Good luck, I hope you find buckets more and plz post them so we can see.
Get your facts first, then distort them as you please-Mark Twain