No, I haven't done any work on this in a few months.
Where are you getting the quicktime from? If you don't mind having the file flagged as progressive and no alpha channel, you could try running it through my quicktime output filter using raw yuv output mode and Avid's Meridien Uncompressed quicktime codec. When I import from this codec, Media Composer just does a raw copy of the video data.
You'll need Quicktime 7,
Avid's quicktime codecs, and the
latest test version of my quicktime filter.
ConvertToYUY2()
QTOutput("output.mov", format="", raw="uyvy")
I usually open this file in VirtualDub, and press F5 to create the quicktime file.
This will pop open the quicktime compression dialog. Choose "Avid Meridien Uncompressed," "Millions of Colors" and from the Options Dialog: "Meridien Progressive" and the correct Color Input and Video Format of your source.