Power Electrical - Passed First time. Eight years out of school. Self-study. Married with one year old baby. Full time job, utility industry.
Total study time way over 300 Hours, spread over a 4.5 months period, 40% of time on theory,60% of the time on problem solving. Did over 900 problems, including, NCEES test example (repeated three times), Complex Imaginary four test set (one time), Complex Imaginary NEC code book (about 100 questions) Alexander Graffeo book (repeated twice), and SOPE practice problems (about 40) for NEC, and about 30 for electric machines from a pdf file a friend gave me also from SOPE. Also watched a lot of youtube videos for Symmetrical components, Transmission line problems. Complex imaginary youtube videos are the best for understanding the basic things. highly recomended.
Test strategy: 10-8-1. Meaning, breaking down the test on 8 mini tests, 1 hour each.Completing 10 questions every hour, NO MATTER WHAT! and making sure to get 8/10 right on that hour. if I was not sure on the 8/10 rate, I will do an educated guess on the remaining two questions of each mini test. I married this strategy, did no deviate it from it at all. I was focus, and commited to my strategy, no matter what. In some of the what I called mini tests, if I will answer all questions in less than one hour, and will write the remaining time on a piece of paper as a way of banking it, in order to use it later at the end of the AM section. I used a $15 Chronometer watch from Walmart, and set it/re-set it at the top of each each hour to stay on track. I finished the entire test AM and PM section with entire time to review some of the most difficult problems.
Before Passing the PE, I failed the FE three times, and wanted to make sure to pass the first time. It worked for me.
Hope this helps.