Well, I tried a test encoding last night to try to do a fast degrain stage. As I suspected, there were too many artifacts. So, if you're looking for good degraining, it's gonna be Slooooooow. I'll keep playing around with some and make a suggestion soon. But, this will at least involve putting an FFT3D in, or re-calculating the motion vectors to do an MVDegrain. These are both painfully slow and these would need to be in addition to what I'm doing in the latest script.