What is the most invisible move you can do at the card table? Riffle Stacking?
And there's no such thing as perfectly riffle stacking.
Normally I would ignore this thread completely. But, this is simply not true. I have seen stacks that look like an ordinary shuffle, with no tells at all. There is nothing to suspect.
If you meant it in a literal sense it is also wrong. It is possible to do perfect riffle shuffles (not faros, riffles). It's probably the most impressive thing I've seen done...
No offense intended, just a correction.