CineForm export in Premiere (Media Encoder)
 

When exporting a SD timeline in Premiere to an AVI, if I use the CineForm AVI selection in Media Encoder and use the YUV encoding format, The color space defaults to Rec. 709 and there is a slight color shift in the resulting AVI. I don't see any way of changing this when exporting SD (Rec. 601) files.
Now if I use the Microsoft AVI selection, and then choose CineForm as the codec, I can use the codec settings to uncheck the Rec. 709 encode/decode. The resulting file is correct.
I guess my question is, should I be using the second procedure for creating CineForm AVI files? Is there a reason to use the CineForm AVI selection over Microsoft AVI? Will the quality be the same?
BTW, if I use the CineForm AVI/RGB 4:4:4 selection, the resulting file color is correct (I assume that there is no color transcode going on), so is that the way to go?
thanks,
Jeff