Start with the deck in the Ortiz Si Stebbins position (4 Clubs on back, Ace Diamonds on face).
Do 6 out faros.
Hold deck face down for overhand shuffles.
Run 4 cards
Run 9 cards
Run 7 cards
Run 6 cards
Hold deck face up in hands.
Cut the Hearts suit (which is in order) to the table, face up.
Cut the Clubs onto the hearts.
Cut the Diamonds onto the Clubs
Cut the J Q K Spades onto the Diamonds.
Cut the rest of the spades onto the JQK spades.
(Instead of cutting to the table, you could just cut from left hand to right hand).
Deck is now face up, in new deck order.
I don't really think that I could work this sequence of moves out is any great sign of creativity. The real creativity with Ortiz' Si Stebbins secret was not the particular sequence of moves that gets you from New Deck to Si Stebbins; it was the realization that there was enough structure in Si Stebbins that a sequence of block cuts and reversals (which is what the overhand shuffles accomplish) and faros could get you there -- everything else was mechanics, albeit very clever mechanics. (This is not to belittle Ortiz. He not only worked out the mechanical moves, he made that final creative jump beyond what Rusduck and others had done). Likewise, since I knew that the moves that took you from ND to SS retained a great deal of order and structure, it was a matter of mechanics (and not so clever, in this case) to reverse the process -- not creativity.
If it is important to you to do this effect (shuffle a mixed deck into new deck order), there is probably a better stack to work from than Si Stebbins.
For example, do two three or four out faros, and memorize the stack. Do your tricks, and retain the stack. Then do five or four out faros and get back to New Deck order (I believe that Michael Skinner, among others, used this stack).
Or use Tamariz' stack.