Extension/Variation of the Chicago Opener

i need to put this here before i forget it.
if you don't wanna be spoiled the next time i show this to you don't highlight the words below

set-up
one blue and 1 red of the same card (eg. 1 blue and 1 red back ace of clubs) place at the bottom of deck, red on top of blue. meaning the blue is the last card of the deck

trick itself.
swing cut and riffle force. show the card and get them to remember it.
complete the cut in the exact same position. at this point, the order should be red ace, blue ace, their card, this 3 somewhere in the middle.
magical gesture then spread through the deck to show the blue
cut the deck so that the blue is on top
DL the 2 cards to reveal that their card has changed into the blue
close it and put it aside, but in their view, not in a pocket or something.. now the blue ace is at one side, the red ace is at the bottom and their card is on top.
swing cut again, but under misdirection or patter or whatever, drop the last card on the top packet to the bottom packet, showing the bottom red ace.
take it out and reinforce that that card is red
complete the cut keeping the top on top and the bottom at the bottom, meaning their card is still on top.
fan out and let them put in the card, showing that all the other cards are red as well.
now 2 things can happen:
1) (my preferred method, but needs a surface like a table, or the palm of their hands) take the blue card on the surface and spring the deck on top of it, retaining the top card as their card, to them it looks like their card "floated" up to the top, and then show the bottom blue is the ace, their second chosen card, as the finish. show every other card is red if they want to see.
2) same thing but reversed order. do a magical gesture. but show as if something went wrong and you cant find the blue card. then do some patter, to reinforce you screwed up and that the blue card is their first card. spring the deck show their first card went up to the top and show the last blue card is their 2nd card.