I know your pain!! Took me a couple of months to figure out my EXII.
Don't worry too much about the pinpointing, you figure that out after a bunch of digs.
The advice that helped me the most was to take the machine to an easy spot, school-yard, and hunt clad! (Please don't write bad things about me hunting clad!!). Make sure your variability are set to 10 (max), and gain set at 5 (not 6 or 7), deep off, fast off, which will help you hear what coins sound like, and learn how the sounds differ with depth (which is harder, at least for me, at gains of 6 or 7). You should get lots of practice pinpointing too!!
With the explorers, at least for me, the sound gives the target away. ID the target by the sound, and then use the smartfind and depth indication to help gain more info on the target, etc. Eventually you will hear the coin so clearly, the trash sounds easily identifiable, that when you pass over a coin with all the sounds you know, and also when you pass over junk sounds not sounding quite right, you know to investigate the target area more.
Once you master the easy clad spots, then go into the older sites, which will be more difficult because these areas always contain iron nails, falsing screwcaps, etc. that drive even experienced users nuts.
Unfortunately it takes time and experience to develop these skills. Lots of elbow grease and concentrated listening. But once you figure it out, look out!!!
For inspiration, this coin was found next to a garbage can at a courthouse park that had been detected to death. It was only 4 or so inches down with trash top and bottom inches from the sidewalk. I walked over the signal, and then came back because I could hear the scratchy silver sound in there, and despite all the garbage, it sounded weird. Needless to say, I will never walk over an questionable signals without digging ever again!!!
Dream
PS. Get a sunray X1 target probe, order it right now, you won't be sorry, and it will save you hours of frustration. If they outlawed them, I would quit metal detecting!!!!!!!!!