The A pillar vision block is a factor not only for aircraft but automobiles as well. And it's does not matter which side you fly from. It's good practice to get the head moving around more when in the circuit or traffic area, lean forward/back or even put in some yaw pedal to check behind the pillar. Especially if you are in base leg and someone could be on final. I've had a C172 on final that I did not see until later than I would have preferred as he was closing in behind the A pillar.