Yes it could indeed work in an ACR, but its certainly not an ending move. If you stop and think about it though, the use of colour changes in an ACR is muddling the effect; the effect should be that the card rises through all the other cards to the top of the deck. When you use a colour change, the top card of the deck is changing to the ambitious card - a subtle change in the actual effect.
The way I see it, I have other tricks where I get to use colour changes in a way that builds and reinforces the effect, rather than confusing it - so I use my colour changes there and let my ambitious card routine BE an ambitious card routine!
Cheers,
David.
Here are my thoughts on the subject, they may be wrong:
You can change the way your spectator looks at a color change, and make him/her think their card is "rising" through the other cards, instead of one changing into another. That way your Ambitious Card routine can BE an Ambitious Card routine.
Jesse
I see what you're getting at. I still feel that, strictly from an academic point of view, its going to be difficult to change what the spectator experiences when they look at a colour change; they are techniques designed, at their heart, to LOOK like one card changing into another. If you want to show the card rising then there's a number of "raise rise" style techniques out there that do the job a lot better, because THAT was their primary function.
And, which was really the main thrust of my argument before, why not save the colour changes for a routine in which they fit naturally? In this, I think my favourite magic-related quote is most appropriate: "Just because you CAN, doesn't mean that you SHOULD"
Cheers,
David.