This is just a side note, but an observation regarding how the Elmsley is used. I prefer tricks where the "count" is used casually to display cards, and not to literally "count" them.
The moment you draw attention to the number of cards you have, people will start not believing that there are the number you say there are, and so the heat is on. Therefore, the "count" works best in a routine such as B'wave, where you can casually display the cards without drawing strict attention to the number of cards.
And BTW, I keep putting "count" in quotations because, as I learned it, the Elmsley isn't necessarily a "count," but is rather a "displacement." (A "count" leaves the cards in their original order, and a "displacement" leaves them in a new order.)
However, I am not an authority, just a victim of my early learning. ;)