I suspect this is largely due to the fact I sit so close to the TV (like 6-7 ft I think) and already had really bad sync problems, but I actually had a chance to test both IR and DLP Link since I still have my Viewsonics and the Ultimate 3D IR based glasses. The IRs seem fine (don't seem to notice anything outrightly wrong with them), yet the DLP wow. The color banding is ridiculously bad now and the entire picture is washed out. It's even worse than no IR...
It seems like as long as you don't sit super close (I'm think 10'+??), start with DLP-Link, and if it seems like there's something really wrong, shoot for IR? I can understand why you'd go from DLP-Link -> IR, but to currently use IR and then go get DLP-Link glasses seems odd to me..
Also I got the Mits emitter for the Samsung LED-lit DLP TV. Where's the best place to put it? Right now, it's on top, resting along the center of the bezel.
The Viewsonics are going back to Amazon!