There are a number of ways to do resizes in Avid, however, the only one that transfers to us automatically is '3DWarp'.

FrameFlex will also work, but as it has to be applied in the bin its common that 3Dwarp is preffered by editors.

A note regarding the 'resize' in 3Dwarp, 3D warp is an easy drag-drop effect that can do resizing, scaling, opacity, tracking etc. and looks like it carries over to our non-Avid systems via the AAF.

You should not use the Avid "Resize" effect, which is known not to carry over well in AAFs.