Passed that rascal just in time for the holidays. Glad to have it behind me. Testguys helps a lot. I went ahead and purchased Testguys pro and used the hints during the test. Its a huge help to put the info with the questions. Take the practice exams and study the materials don't just read to find that specific answer.
Things to familiarize yourself with:
Power Factor Calc
Capacitance Calc
Inductance Calc
Ohms law
Neta ATS and Mts
There were several questions that I feel like I confidently just by using process of elimination on the questions.
Sorry I don't have more detail than that its hard to retain a lot of information when a test covers so much stuff.