For those familiar with the YADIF plug-in
www.yohng.com/software/yadifvegas.html
I'm working mostly with 1080 60i video. I generally work in sections, render to MXF files 1080 60i and then combine the MXF sections and render to the Internet template 720p. Is it best to apply the YADIF deinterlace to the 1080 60i MXF files or to the the original sections and render to MXF 720p and combine those for the final Internet template 720p?