Sales video makes it seem quite easy, and most reviews also say that, BUT:
1) 95+% of the
time you will have to do a force - which the sales video doesn't show (he lucked out, being able to
skip that step in that rare occurrence.) For me, having to do a force breaks the smoothness/flow -
it seems less clean.
2) a required sleight is NOT easy to learn, and impossible for my age
smoothed fingers. If you can master it, the trick is mostly strong.