Nice! I didn't think of using A/B this way -- clever!  This scenario comes up frequently for me, I'm going to try this out next time.

I run similar XTs and found it was less of a headache to keep each little group as separate Activities and Audiences Activity "UX ID A" and target Audience "UX ID A" where current URL contains id=A. Experience 1&2Activity "UX ID B" and target Audience "UX ID B" where current URL contains id=B. Exper...