I would like to advise you that the MRG is an ausome guide, which will give you the ability to understand more clearly the systems from a pilot's perspective and associated failures that can be extremly helpful in quick identification and reaction to any problem that you may incounter. I have both books, but since I recieved the MRG, I fell in love with it and I have recommended it to all of my colleagues to obtain one.
It is a great asset to have.