Jagged Edges/Aliasing Render Issues Downconverting from HD to SD in FCPX

Hi Guys - I've finally made the jump from FCP7 to FCPX and have had a pleasant experience so far until now. I do a lot of HD to SD down-conversions after my editing is complete. As you can see from the screenshots below, I'm seeing aliasing issues on my rendered footage.

FCP7 (perfect) : http://i.imgur.com/mJo9F7d.jpg

FCPX (aliasing) : http://i.imgur.com/kbO8Pqa.jpg

On FCP7 I would simply go to the Sequence settings and change the Field Dominance setting to NONE and continue with exporting the HD timeline to Compressor and using the 90 min DVD setting and my rendered footage would look great!

I cannot seem to find a way to do this in FCPX. I know you can set the clips' Field Dominance "Override" setting to None Set, Upper Field, Lower Field and Progressive. I've tried all 4 options and none seem to fix the issue. Even when I open Compressor and view the exported timeline from FCPX, it states that it is Upper Level eventhough I've changed the clips to the other 3 settings.

Any ideas how to fix this? Am I missing something? Is there something similiar to FCP7's way?

Thanks.