hi Scott,
i was reading some posts concerning fcp to avid and back again and i was wandering, did you manage to to it in a good way.
my experience is that there is always a color and b&w shift. no matter what codec you use.So when your project was graded on avid and then sent back to fcp, did you the same colors as in the avid??
hope to hear from you.
greetzz from the Netherlands
oscar