The Epic always had a latency problem. I did tons of test on this and here is what happens:
Epic has a 2-3ms delay. Depending on the monitor you might get another 1-2ms delay and if
you have a VTR guy in between with a whole bunch of processing add another 1-2ms.
Which means by the time the signal reaches video village you are between 4-5 ms off. Which is very
visible and annoying as hell.
Always a nuisance to tell the director and clients that "this is a technical issue beyond our control".
We had some success delaying the audio signal by the same margin. However if you are on a small set
where you can hear the live audio you are out of luck.