Logan example of some good rowing. Very level, catches quickly, finishes cleanly.

Logan can get a better stroke by adding some rotation in the 2nd half of the recovery and relaxing the arms, esp. inside elbow.

Note how level hands remain at coming in and out of the finish. Not pushing hands down as he brings the oar out of the water and slides the hands away from the body.

Ulirsch also rowing well, but with more length because of more rotation at the catch. Note also a more relaxed inside arm/shoulder. Still quick at the catch, squaring early and finishing cleanly, but is slightly using the back at the catch to place the oar.

Contrast with Preston, who is getting more length but doesn't have as good a connection between legs, body and oar, and Jordan who could use more body angle and better posture at the catch. Jordan is also swinging the back too early in the stroke.

As usual, pause the video at various points in the stroke to see this more clearly.