In a multi thousand page document zero errors? Not very likely. I would not expect a gross error but one where Merit says "hey, we can save 50G". This is more like what I'd expect.
So Webgogs, you are suggesting that if they can find something like saving 50G here or there they are going to extend this review several more months until 2013 and spend several more 100k to perhaps 1m more in consultation fees to fix this 50G error?? Not very likely, imo as a professional engineer. IMHO, they will probably let it go for something that insignificant and probably will not delay this further unless the magnitude of the error reaches several million in more expenses. And if ES has done a thorough a job as I am expecting the review will most likely not find something of that magnitude.