Dr. Joaquin Ayala
I think the video was well made and the instruction was very clear. It covered a lot of nuances of the use of this utility, as I would categorize it. I say utility because it can be used as a sleight, it can be used as a flourish to pop any card out of the deck, and it can be used, of course, as a way to reveal a selected card or four. I was particularly entertained by the four card production sequence - that is something I would love to use in one of my card sets.
Now, my own results with this have not been great. I am not really much of a cardician, although I do perform some of the classic card effects now and then. The actual mechanics of this are not difficult at all, and is in fact very much within the reach of a beginner. I had to find a different way to make this work for me just because of the nature of my fingers, and I have not gotten it to the point of being able to do it consistently just yet. If I try to do it as described in the video, I get it to work, weakly, maybe 1 out of 10 attempts. If I do it in my modified position, I can get it to work better about 5 our of every 10 attempts.
Regardless of my own results thus far, I still say this utility has a lot of potential and is a very cool, very visual and rather unique way to reveal selected cards. Overall, I give it my full rating because of those characteristics and features, including those listed above.