Alpha matte creation in PP

I've got to add some textless elements to the end of a program for HDCam export, so I'd like to generate an alpha matte to go with the semi-transparent lower third. All my attempts so far leave me with a too-transparent bar when re-assembled. Does anyone know the proper way to do this in PP?

It's a simple fade on bar with a feathered edge, and a logo that pushes outside the edge of the feather, then recedes back into the bar.

Unless someone has a better way, I suggest sending the graphics to AE via dynamic linking and exporting alpha and fill separately. Just make sure you export alpha as straight.



www.strypesinpost.com

Ta Strypes.