AC has posted a new set of s709 LUTs for the FX9 which are a Green minus LUT set compared to the original one designed for the Venice sensor. Might be worth a try?
http://www.xdcam-user.com/2020/01/new-s709-lut-for-the-fx9-thats-less-green-than-the-sony-lut/
Chris Young
Thanks .. sorry just saw your post sir