I read some rockets do a small yaw maneuver of about a degree immediately after T0 to avoid the tower in case of wind gusts.
Would the space shuttle ever do such a maneuver? Did it?
I read also that from T0 through the start of the pitchover maneuver, the attitude indicator will display pitch-yaw-roll in that order relative to an inertial reference frame conveniently located at the launchpad and aligned with the launch azimuth precisely at T0.
Because pitch was the first rotation in the displayed sequence, a yaw maneuver relative to that inertial pad frame would have registered as a combined pitch and yaw rotation sequence and not as a pure yaw rotation. This would have been less than intuitive for the crew, so from this alone I want to say the shuttle never did yaw maneuvers and instead went straight to the roll and pitch rotations.
Does this seem right?