I cut my teeth on the Quick Draw 2, which is the exact same thing as your machine. For starters, the notch feature is nearly worthless, in my opinion. I never used it. With the discrimination set at 9:00, it should be the right amount to get rid of nails. I always ended up setting mine there and digging everything that sounded good.
That machine is super hot on dimes. It loves them. Also, I noticed that nearly always when the tone bounces from high to mid, it's a pull tab or a square tab. You just have to get out there and dig. That's the only way you're going to get to know the machine. After a while, you'll notice similarities in the way the machine reacts, and will be able to call targets appropriately.
It's a good starter machine. It will teach you the fundementals and find the goods. Mine paid for itself, a Garrett Carrot, and my used M6 within 7 months. I was immediately obsessed with metal detecting, however, and went every chance I had. Your results may vary. Keep after it. You'll have it down pat in no time.