Should TRT stop upon signs of gyno, and can Aromasin reverse it

In this controversial episode of Ask the Doc, Dr. Rand addresses a popular question among users of Testosterone Replacement Therapy: A gentleman started a cycle of Test Enanthate, but didn't use Arimidex for the first 3 weeks. He just got it, but not before the gynocomastia set in. He wants to know if he should switch to Aromasin as a way to reverse it, or just stop taking the Test altogether?