Trumped Triumph by Joshua Jay

see the effect here

this is another example of how a well constructed presentation can take care of a weakness is method etc. at the start of the effect he turns cards face up and down and begins to mix them... while i was watching it i thought... it was a weak part as any astute audience will notice that by looking at the faces of face up cards the magician is improving his chances of knowing the identity of the selected card ...
but soon afterward he playfully looks at the selected card and tell informs the audience that it did not matter if he knew what the card was... so this takes care of the problem i saw in the first part of the set up.

on the issue of astute audience ... many will claim that 90% of the audience do not care about it... and they are right... most audiences do not care about a lot of illogical things we magicians do ... but that is besides the point here.