7 rounds for time:
65lb shoulder press, 21 reps
back extensions, 21 reps

17:35

Notes: Warm-up with a PVC or an unloaded barbell prior to starting the workout. Focus on excellent mechanics and keeping the midline engaged throughout every portion of the press. Keep legs and torso rigid for each rep of the press and strive to complete each set in 1-2 efforts. Reduce load as necessary.

As Rx'd is 75lb. shoulder press, split the difference and went with 65lbs. All sets were completed with just one break.