"but can any acro be accomplished partial panel"
The exercise was directed at the UA recovery training value and was part of a basic IF training program including most flights blind from engine start to stop. I can't really say how "good" (or "bad") the aeros were on limited panel (not having any external view) but the instructor seemed happy enough with the external views. I was aware of where I was throughout, quite comfortable with the sequences .. and had no great difficulty ending up in the desired flight path at the end of each manoeuvre sequence. Certainly, at the end of the training sequence, I had a very good idea of where the aircraft was with this or that panel presentation .. which was the principal goal.