Makes sense.
But also sort of infers an idea I thought about mentioning...
I know it may not be proper A/B/X but a form of test I really like is to randomly slice in A or B so that it flows from one to the next and so on. As the person creating it (minus some tool that will do it hint hint), you can't test yourself but I have found it handy for demonstrating things to others.
I have another comment about the files but saving for later.