This is great advice.  One of the best things about doing AABB testing is when your two A groups &amp; B groups <i>don&#x27;t</i> converge, you can identify bugs in your testing procedure or measure the margin of error (since you know those groups are seeing the same thing and should be performing identically).  Seeing two identical A groups with wildly different results will make you more skeptical of generic A&#x2F;B results &amp; make you more rigorous about your testing.