That makes me feel like I need more! But it's apples and oranges I guess when it comes to whatever works lol.Walls of text are great... Here's mine.
Last time I worked through Graffeo first. It was a good review since i've been out of school 8+ yrs.
Found Zach's course and signed up for it. Went through the entire course and filled up 3 notebooks with notes on all the videos and examples. I tabbed all those and reference them a lot. Ill probably skim through the course again over the next month and retake the quizzes. And it looks like Zach has added new stuff too!
I created a binder with all of the live class and formula sheets for Zach's class. I mostly use this binder for reference.
When i bought EngProGuides technical guide, i put it into its own binder, divided by subject. I need to go through the formula sheets though.
I also have Zach's exam, and all 3 of EPG's exams in their own 1/2 inch binders. I did all of these the last round, and plan to take them again.
I bought the Cram book and all exams which are excellent and totally recommend since i dont see it in your list. I only completed the first exam before the test was cancelled so i have the other 3 to take. Ill probably do one over a week instead of timed, and the other 2 as timed practice tests.
I went through 1 exam in Complex Imaginary... The exam was easier, but the code drill book was great practice. I plan to use these as practice problems.
Ive got a binder full of extra references, and plan to add more to it!
I read/skimmed a lot of Wildi last round, and i finally got a hardcopy of Blackburn in April, so im planning to skim through and tab it.
I went through several of the protection chapters and examples in the Glover book last round and plan to repeat that.
Also have the ncees practice test which i plan to take again too.
I do not have the PPI stuff like you do - i keep hearing mixed reviews about it.
Overall, ive got 3 milk crates, but 2 are mostly extra stuff. Gonna roll a dolly into the exam!
To me PPI feels more like theory instead of application. Great reference but you can get lost in a hurry in the thick of deriving equations etc.
I am going to look into Cram books in a few weeks. Great suggestion and just like the other poster said I am cautious to spend the money until I know it's happening this time.