Best of luck to everyone! I tested in September 2017 and passed (thank God.....the wait for the results is torture).
Here is what I did to study (and I hope that it helps in some way). I first bought the ACCP study books. I was thinking about taking the exam in spring 2017, but I procrastinated and decided to delay until fall 2017. In the meantime, I also purchased the HYMR package and started watching the lectures and making notes (I actually received those materials 3 months prior to my test date). This was when I started studying for the exam, and while I could have started earlier (looking back on it all), I don't believe that an extra few weeks would have helped me do any better.
After I finished watching about half of the HYMR lectures and making notes, I started reading through the ACCP materials and using this to help solidify some of the information. Yes, the ACCP materials are more informational, but I think that watching and studying the HDMR materials showed me some things that weren't in the ACCP study materials. If I had to only choose one resource, though, go with the ACCP books. Trying to go back and review things on the slides from HYMR is difficult if you didn't take extra notes (and sometimes, even if you did). Speaking for myself, having both materials was not overkill. In fact, it showed me just how much information I was responsible for on the exam, and that was a huge punch to the gut!
I took the ACCP mock exam a week before the actual test, and I did poorly. The good thing about the mock exam is that it shows you the areas where you did well and those where you didn't do so well. It also includes extra questions from each section for you to check out. I would recommend taking the mock exam. At least this will give some indication on how the questions might be worded on the exam.
After taking the exam, I felt like I wasted time and money. I just knew that I failed and failed miserably. And the worst thing you can do after the exam is look up things that you were unsure about (and if you chose the wrong answers for these, it will haunt you until the results are released!). Fortunately, I passed, and now I can move on to beginning PSAPs.
Again, good luck to everyone![/