@CardMagicNJ: First, I don't believe there is any need to apologize for posting frequently, and it is certainly not "hogging," particularly if the question or comment is one of legitimate interest to members, as IMO your posts have been. Actually, posting new topics and questions by members is kind of the life-blood of the Forum (again IMO). It keeps things from getting stagnant and boring and stimulates discussion from which we can all learn and benefit - and yes, have fun. So don't hesitate to bring it on...
I made a decision long ago not to use duplicates or gaffed decks, with the one exception of the ID as a closer, and which is just too strong not to do). Like many magicians, the Bicycle decks I use for the ID look exactly like the regular Bicycle decks being used for the prior effects. In decades of doing the ID, I have not had a single person ask to see the cards. They are probably just too stunned.
As time went on, I realized that there are literally thousands upon thousands of strong card tricks to choose from, so many that can be done impromptu with an ordinary deck, containing no gaffs or duplicates. What card trick could be stronger than Out of this World, and they can examine til their hearts' content (well, not immediately before the presentation, of course). Then again, there are tons of great card tricks requiring no set-up whatsoever, the AC being just one case in point. So, by using a perfectly innocent ordinary deck with no dirty work to be found, in the event they ask to examine (which really shouldn't happen often at all - and really only just happened to
you recently for the
first time), well, you can say, "Knock yourself out." And when their suspicions are quashed it will only heighten their opinion and impression of you as a skilled magician, and they will sing your praises to others, as well.