Yes that's why I gave up buying 4670Ks. They were even worse than my 4770Ks haha.
So far almost tested 20 Chips and the highest I got was 6,3 validated and ~6,0 benchstable.
Ivy was a lot easier to bin.
Another big problem is that some vendors only give you support as long as you write a "good" review with an awesome award. How often did I read "please send the review to us before you publish it" and later "the review is not as we expected it. Can you please remove the lines xxxx or do not publish it".
This happened with all different and big manufactureres.
The consequence for me is that I do not trust most of the reviews if they are sponsored by the vendors. Whenever I read "thanks to vendor xx for providing the board" I know that the reviewer will most likely hightlight the positive aspects but will leave out the negative stuff.
For sure there are also trustworthy reviewers out there but a big amount just publishes what the vendor wants to read.
Looks like the same kit which we had from Corsair for the Computex Main OC event. If yes - that's my kit:
CMY8GX3M2A2800C12R
2800 MHz 12-14-14-36 @ 1,65 V ver5.29