Reds and Backs by Bob King

Apocalypse by Harry Lorayne
Volume 7, Number 9 September 1984
Page 970 et seq.

Personal Comment: As much as I would like to dislike the routine I cannot help to notice that it is a damn practical method. Only bad thing... you need to decks. Which most have anyway.

Difficulty 4/5

Picasso Aces by Phil Goldstein

Focus by Phil Goldstein 1990
Page 122 et seq.

Personal Comment: This is just bloody brilliant. The problem with most of these tricks is, that the Aces are too long out of view. But adding a different colored back to them helps to keep up the image of the aces being there where they're supposed to be. Now adding odd colour backs usually means stuff gets complicated in terms of setup and all of that. It is not so in this case. Just cull/cut/control one regular ace to the top and you are ready to go.

Difficulty 3/5