On the excellent Mygolfspy.com website one person had asked about consistency and maybe the results obtained in their tests were due to a manipulation of the results. I.e. they had received a few "specials" but the general product would not be anywhere nears as good.
I have been in business over 30-years I have seen just about every trick in the book and from my personal experience of the golf balls I have yet to see a blemish on anything.
The printing is perfect on the packaging, every ball I have examined has been perfect so far. However, I will say that for English speaking golfers some of the wording on the packaging is how a foreigner would write English rather than a native. That has been the only mark down I have found. (The wording makes sense but that was the only issue.)