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The "split into two steps" screenshots use the same thumbnail for both images.

As I sit here trying to figure out the difference

Maybe there was a split test to see how many people noticed. :)

We shot a second trailer video on The A/B Testing Manual’s site that was the exact same pitch, only with my dog (64lb border collie) in my lap.

Seriously contemplated A/B testing them as a joke, but erred on the side of sanity.

I wish you had!