I shot a musical doc in Portugal with 3 cameras. I took 2 Canon 5Ds with me and hired a cameramen who used a third 5D. Only when I was back I discovered the material from the third 5D was shot in PAL. So I have 66% of the material in NTSC 29.97 fps and 33% in PAL 25 fps. In order not to lose lip sync in long stretches such as songs and interviews, what would be the ideal workflow, considering I have to change from H264 into ProRes 442HQ before going to Final Cut Pro 7?