I woke up early this morning and found both machines upgraded to 0xEF becausee of 4xFF. I eagerly checked the OTA but I wasn't too disappointed to find it wasn't enabled, yet. I watched MPEG2 SD and HD on both machines for a while. So far so good. I have not run into any problems I had with 0xEB in the last 2.5 hours. Trick play is way better than 0xEB. Video is much smoother in FF. 30 sec slip is completed within 2 seconds. I love the 4xFF, although I overshoot a lot more. I can't really use it to FF through commercials because it takes too many replays to correct a 4xFF overshoot, but pacing through a halftime show was nice.