Erdnase has some interesting shifts that I dont see many using in routines. I see a lot of vids of the shift itself but thats about it.
I think there are only two moves in Erdnase that could be used as multiple shifts. The Diagonal Palm Shift can be used to control cards from multiple positions to the bottom or, if you want more of a challenge, to the top. Also, in the section "Ordinary Methods of Stocking, Locating and Securing", he describes "a more artistic method of locating and securing cards", which is, effectively, a tabled multiple shift technique.
Personally, I like using straddle-grip pass mechanics, as it seems like the most direct method. I understand Jason England teaches one of these kind of moves on the
Unreal Work DVD, and there are similar ideas on Derren Brown's
The Devil's Picturebook (Mike's Move) and Olivier Macia's superb
Control Freak DVD. I believe there might also be something of that nature on Randy Wakeman's
The Pass DVD.