Nathan Kranzo's DVD called Mene Tekel Miracles is one of the best resources on the subject that I have seen.

I have to agree. Since (and somewhat before) starting this thread, I went thru a lot of sources that mostly led to more questions than answers - but that is probably because I like to overthink things sometimes the Kranzo Download was/is spectacular in my opinion. That said, the ebook titled “The Self-Contained Card Delivery System” (Mene-Tekel Magic Maximized) by Shawn C. Evans was a steal for $19.95 at www.lybrary.com it answered almost every specific question I had like “top or bottom”? should I use R/S? ... go there and see the contents then buy the book. Honestly, that plus the Kranzo Download is a ton of great magic ....NOT including what you may come up with when you understand the different principles at play in these two sources.