I bought my Sainsonic ones from China and they took a few days to arrive, very quick and effort free. I wouldn't bother with anything that doesn't support 144hz, especially when you can get some for 25$ bucks each, just in case you ever do want to watch an actual frame packed 24p 3D Bluray and not a rip. FYI the rips I've seen are nowhere near as good as the originals. In frame packed, I dare say it's very smooth and flicker free. Get the right ones, it's the Right Thing to do (tm).