theory11 — Magic Tricks & the World's Finest Playing Cards

Ego Change

The angles for ego is simple.
Directly in front is the best, that is the face of the deck faces your audience.
Taking that you hold the deck as a left hander like me, it is best to perform the ego change between 12 oclock and 2 oclock.
 
Correct. tilting the deck downwards will provide more cover, but you have to make sure you don't flash in the back.

Hopefully i'm being vague enough.