I am planning on doing all CFI/MEI/CFII, but I was thinking of starting with MEI, as I need to build up my multi hours anyway. So I am curious about the difference between an initial MEI and an initial CFI. For the oral, do I still have to have lesson plans for the single engine commercial maneuvers, as well as all the other lesson plans in the PPL? And for the checkride itself, do I need to demonstrate only the maneuvers from the commercial MEL, or does it include more? Also, do I have to demonstrate the instrument part of the commercial MEL? Thanks for your time.