I believe I have my settings ‘wrong’ as well in order to deliver it ‘right’ back to the avid editors, it’s another case of trial and error workflow adaptation…
I receive my sourcefiles from avid as 709, but have to render them as rgb for them to look the same when importing back in avid…
Depending on the type of animation, you could use expressions in stead of keyframes on your layers, and drive those expressions with markers. Slide the markers around and your animation follows.