Here's a quick track test with the current set, after strong HDR processing. This ain't supposed to be a good shot, or good HDR, or good lighting, but it tells us what we need to know. The original flics have a tiny bit of flicker, but the HDR processed shots flicker like a bastard. Dave thinks it's due to the basic nature of HDR. There's been other tests before and since; Dave thinks the problem might be solvable, somehow. I'll try to include technical details if we do solve the problem, for the benefit of others. If it's not fixable, that means no tracking with the sets. we can do imitations of pans via wide stiches and AE, which will let me do what needs to be done. But it'll be a bummer if we can't track.