I think King instruction is great. However, the instrument course is way to tailored to specific (old) FAA test questions. I took the test today and only 30-40% of the question structure was similar. What is great - is the logic behind the instruction. My advise would be to re-do the videos with no actual FAA test question structure (tons of reference to this through). Several questions on the exam that were not addressed in the King instruction. I will use King for further training without a doubt - just would like to see the instruction pace with the changes FAA is introducing. Still - Martha and John are best at explaining all aviation concepts.
Michael K.
04/25/2016
Instrument Rating Ground School & Test Prep