Thanks for all the responses and information.
If I understand correctly I can capture dual link from
HDcamSR 444 rgb 10 bit. Make cuts but no effects in FCP, and
output back to HDcamSR dual link 444 rgb 10bit.
In case we have to use effects in fcp am I right that 10 bit 422 yuv should look better than 8 bit 444 rgb.
Thanks,
CGray