i think the ID is actually better then the Brainwave.
The fact that the card is a different color acheives the same effect as it being face down in a face up deck.
It's almost an anti climax....if you ahve 2 big climaxes in this trick, it could abckfire and be TOO impossiblew to be true, or one of the climaxes would have no effect if they acheive the same thing.
Also, as someone said, the ID has more buildup- therefore, more suspicion so more MAGIC!