I have followed this thread and am slightly bemused by some of the comments written about flying the Phenom, particularly in formation. I have flown it from the left seat in close formation (echelon left and right and close line astern in wing overs and turns up to 60 deg bank angle), albeit against a Kingair and not another Phenom. I thought that the field of view was satisfactory in all positions and that the thrust and drag characteristics allowed good fore and aft positioning. There has been criticism in some posts of both of these aspects which surprised me. However, I am quite surprised that there have been no comments on the high pitch control forces at stabilised high bank angles. Perhaps opinions depend on formation experience and recency.
One MFTS aspect that needs to be considered with the Phenom is the number of different types that ME pilot students from the course may fly. This is far greater and more varied that any of the other MFTS types and so whatever type is used for ME pilot training will always be a compromise.