Thanks Rep, glad you enjoyed them! And great cook! Only one incredibly important question: How did your Girlfriend's Mom feel about them?
I'm following up with some boring explanations now too, so if you aren't interested, now would be a good time to give up on this post.
First on the butchering: We have a couple of different options. First is that we cut them to exact weight. When we do that, we're at the mercy of the cow. They're all like giant, cud-chewing snowflakes that have unique muscle structures, fat deposits and shapes. That means that some 10 oz filets will be thick and stout. Others will be a bit more spread out. We also have options to buy some cuts by thickness (usually at 1.5"), but those cuts can vary a little bit in weight, which can also be very frustrating. With eye of ribeye cuts, like the ones rep got, we always do exact weights. If we did thickness we would get less yield from each muscle, which drives up the price. For American Wagyu, which is already fed for 3-4 times longer than regular cattle, those price increases are tough (we aren't cheap as it is).
That's not meant as a wave it off excuse, Rep has a valid complaint there. And Nootka is right, it's an issue unique to online sales. We generally hope the fact that the meat quality is good enough that you don't mind non-uniform cuts. We also will quality control anything that would significantly affect a cook - like a steak being too thin.
As far as grading goes, it has a special designation as "Wagyu" from the USDA. But that doesn't help much. Since the USDA scale doesn't go higher than Prime, that would be the technical designation if we went that route. But since our own beef ranges from a little better to much better than prime when it comes to marbling, it doesn't do us any favors. We sort our beef internally based on the Japanese Beef Marbling Standard (BMS) that rates beef from 1-12. Prime you find at Costco or a steak house is going to be about a 5 on that scale (A5 Pure Wagyu beef would be a 12). Our Black Grade runs between a 6-8 on that scale. Gold Grade is a 9 or higher. I'm a terrible grader, but I would guess Rep received about a 7.
That was a lot. Hopefully its educational. If not, your scorn and ridicule will not cause any hard feelings.