Ulirsch is good example of level shoulders throughout the drive. He could gain more body angle, but has good reach with the arms. Overall, disrupting very little, getting connected and staying connected through the whole stroke.

At 30" into the clip, view the differences between Ulirsch's arm reach and Butler's. Butler's hands remain very low and close to his ankles. Ulirsch has the arms extended but loose, oar loose in the fingertips, the path is flat and he is reaching out but without diving.

Pause the video at several points in the stroke to see this. Catch, drive, finish, mid- and late-recovery.