Initial CFI can be challenging. It has the greatest disqualify rate due to the fact tht this checkride is the last barrier to a great degree of freedom.
ASA has the Oral exam CFI which you should have, also the PTS gives you the standard. Safety is the primary criteria, together with judgement.
I think it interesting that Mike was put into a spin in the landing configuration, as that is not a standard of examinors, however, they have the freedom to do it if they so desire.
I think that if you know the PTS and have it in hand you will be fine. My initial was the CFII and that was interesting...
Have the PTS in hand, that is the guideline your examinor will use. Have the FARAIM also, tabbed with all the corresponding regs of 91, 61 and the appropriate AIM items tabbed as well.That will show the examinor that you are teaching from the Bible.
They want to see this.
In this way there will be no surprises. Keep it standardized, and be well organized.
This will see you through.
Another thing, if you dont know something, dont try to BS. Be honest and look it up.The examinor will be looking for this also.
Good Luck