Thanks guys :-)
Yeah. After seeing the great clean-up job Laserschwert did on Puggo's PSB sample, I asked him if he could clean up the JSC flyby shot for me. He sent me a few versions with different settings and I finished the clean-up in AE and then I had a smear-free version, which was cleaner looking then the GOUT, so I didn't use GOUT at all. I also tweaked the colours of the JSC clip and then used it as a chroma layer for the whole shot to make the colours more even.