I have to put another vote in for Osterlind's Mental Breakthrough System, I have not had a lot of experience in memorized deck, but this one has served all of my objectives.

Somebody on some thread (maybe this one???) said that a card system and a memorized stack are two different things...I guess that's right!?

I mean with a memorized stack you know the number of every card from top to bottom where with a system it's like the "series" of the cards...something like that????

I'm working with the Aronson stack right now and have it pretty well memorized...especially when it comes to the number of each card! I figure why memorize just a shuffled deck when a famous stack has all the features this one does!? Besides, if I run into a magi somewhere that also knows the Aronson stack, he could borrow my deck and do the Aronson or Mike Close effects...and visa versa too!

FTA magician, not all of Simon Aronson's tricks need to be done with his stack, same with Mike Close's effects. But let me ask you something, do you use a lot of Simon Aronson's built in features? I never have which is why I made a stack of my own with my own built in features. I think that is the best way to go about it, use a stack that has features that you will use.