Scorponok
Thanks to Lars Eriksson for providing a theory (quoted below) for Scorponok's stats. The two original techs are noticeably incorrect.
"I have a theory, which of course cannot be verified, but which I'm 100 % sure of myself. I'm sure you've noticed that the second version of his Tech Specs are exactly the same as the first one, only turned upside down. To me, this indicates that Hasbro *did* have an intention with the stats they originally gave, only that they didn't get them right the first time (and as we know, not the second time either). It's not just random numbers.
Now, compare the numbers from the second version (8-7-2-8-8-8-7-7) with the Tech Specs meter in Scorponok's chest. With Lord Zarak correctly inserted, you get Spd:4, Str:10, and Int:9. All three these values are two points higher than the numbers in his Tech Specs. This leads me to believe that all his Tech Specs stats should be raised by two - I think the blue line in his Tech Specs has the right form, but it was printed two points too low.
So, then we end up with these numbers: STR:10, INT: 9, SPD: 4, END:10, RNK:10, COU:10, FPW: 9, SKI: 9 Rank 10, that fits his position as a Headmaster Commander, and matches Fortress Maximus' rank, which is also 10 - that's another indication that all the stats were printed too low.
I think all these stats look okay - personally I would have preferred to see him with an Intelligence rating of 10, but the 9 is probably a result of Hasbro's bias against "bad guys", and it's verified by his tech specs meter."
Credits
Base Tech image: Scorponok's tech spec from the International Transformer Tech Spec Archive