If it gives you peace of mind to double check your system once to make sure the auto setup and Audyssey are working properly and you can borrow a meter then you might as well. Even on my older Denon and now my new Onkyo all speakers are always within 1dB of each other.

With the current version of Audyssey on my Onkyo I’m not even checking or tweaking it anymore because it’s making better settings than I can.

3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1