Check out the latest installment of my analysis:
NV J.3 - Shane and Dennis Were Not Totally Innocent at the Derby City Classic
Enjoy,
Dave
Nice, you got the tilting of the rack explanation right in this one. Rarely does the table have the spotting line, so it's not so easy to catch this one in real life, so to say.
There is also the slightly forward or rear placement of the rack to consider, as well as various gaps.
There are so many ways to cheat in 9 ball, and I don't think you've even gone over half of them, but still excellent content. You've covered most of what you can get away with in a pro tournaments, though. In amateur play, some might try to get away with gettting the 9 moving with gaps etc..
I don't think for a second that the gap racking and tilting issues are unintentional. Though obviously that can never be proven.