Down-conversión HDV-DV... is this right?

Ok. I just want to know if I did it right when down converting from HDV to DV, so that it can be broadcast.
1. When I finished my HDV 1080i60 sequence, I exported the clip in its original format.
2. Then imported that clip to a sequence with this settings: NTSC DV 3:2, NTSC-CCIR 601/DV, 16:9, field dominance set to "none".
I set the field dominance to none, because it was the only way for the clip to not look bad (pixels or lines).
3. It looks good. but I don´t know if it´s the right way to do it.
NOTE:
I already did it through compressor, importing the HDV clip to it and then exporting it with the SD definition for DV NTSC 16:9.... but the result was a clip quite pixelated.

I found the same issue when I recently edited with HDV 1440x1080p30. When I rendered FCP out to ProRes 422 HQ NTSC, then imported the ProRes clip through compressor, I got much cleaner video.
Larry

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I just have a few quick questions on working with HD, as this is my first time.
First, if I am shooting in HD, but my final output will be SD, where does the down-conversion happen? Can I simply capture in SD, even though the footage is HD, or do I have to capture and edit in HD, and then down convert when I export the project to Compressor?
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Thanks for reading, I shot my footage in HD 720pn on the HVX200. The final export needs to be fitted into a 352x288 frame 'uncompressed' which I will hand to my client who will convert to .wmv and .h264 for viewing on a PC and their video playback device (hence the odd 352x288 frame size).
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