Byron knows whats up. Performance and attitude is king. You can use any type of deck as long as it doesn't explicitly say MERLIN'S MAGIC CARDS OF WONDER on the box or crissangel.com over and over on the back you are going to be fine.
Excessively worrying about the backs of your cards is an example of running when you aren't chased.
Plus, when you do magic for certain people their mind is going to search for a method. That just comes with the territory.
You guys think that just sticking to red and blue bikes is going to keep the 'trick cards' fairy away? Spoiler alert: It won't.
Sad thing is I'm willing to bet some of you have been asked when using bikes but still want to cling to this idea.
You guys know the only difference in the cards is the look and feel. Treat them as such, the audience will pick up on it. Want to be extra cautious? Try offering your cards out for shuffle and examination prior to performing.
Have a card set up you use? Tons of ways to work around this.
1: Have the packet retained in the box then after spectator shuffling add the deck to the box.
2: Have the packet pocketed, ready in a palm, add when you receive the deck back. Consider cutting the deck into two packets and having two different spectators shuffle those packets, add your packet to the cards from the first spectator to finish while you call attention to the other spec who is still shuffling.
3. Do a full deck switch with any excuse you'd like. You can simply add the cards to the box and say something like "Wait. Before I start, let me be sure I got everyone's names right". Put the deck in your pocket as you say that and then get everyone's names. When that's all done get the set up deck out.
4. Make friends with the gambler's cop if you haven't already.
...I don't really care enough to finish this rant so I'll leave it at that.