"Don't worry about FEC errors, my line at work has over 600,000 a minute, so 35 million in a day is nothing. Actually it's currently showing 680,788 for the last minute".
From an engineering perspective, if I personally saw that level of cumulative FEC's with my JDSU, I would definitely investigate further.
Again, I have to apply the caveat that I don't know if there is any difference between what you guys see with your scripts, to what the JDSU presents to me ??