FCP7 3D Simulation Cross Zoom FCPX Equivalent

I loved the 3D Cross Zoom in FCP7, used it all the time for logo fly-ins. But I have yet to find an equivalent for FCPX. I see lots of clip to clip zooms, but I'd like one that zooms from full to normal just like the ole legacy version.

I've yet to find a similar effect that works this way for FCPX.
The effect would work between two clips by zooming up the A then zooming down the B.
You could also use it as I have above by applying it on a graphic element. If the element was off center, it had a "select center" crosshair tool that would correct for that so that it zoomed down from the center.

I was able to make a transition in Motion that kind of works, but if the object is not in the center it flys in from the side instead of obscuring the full frame. I couldn't figure out how to make it z-down from the center. If you try to use keyframes it does a weird sloping move to the off center spot.

Have you tried publishing the incoming clip's anchor point (x, y) to your custom transition?

Spitballin'.