A bit late for the OP's question, but still related:
Detroit show tickets said 7:00. We were walking to our seats last night and hear
More Than Meets the Eye starting, so we hurry, get to our seats and its 6:55.
It was my first time seeing any of the 3 bands (pretty sad being that I've been a fan of all 3 for 20 years). I was very disappointed with Testament's set list.