Stand on the dome and chop across your body.
Rotate from your trunk and let your hips turn, keep your balance on the dome.
Standing on the dome while chopping your arms diagonally across your body sends a rotational force through your trunk that your core has to both create and control, all from a base that moves. The obliques drive the chop from hip to opposite shoulder while the deep midsection keeps you upright on the wobble. It earns a place as standing rotation training, the pattern behind throwing, striking and swinging, with a balance test built in.
Let them turn with the movement. The chop is a full trunk rotation from hip to opposite shoulder, and locking the hips square just forces the spine to do all the twisting.
No, this version is done with hands clasped and no load. Standing on the unstable dome supplies the challenge, the balance demand does what a cable or dumbbell would do on flat ground.
Rotational strength and balance are rarely symmetrical, and the dome exposes the gap. Give the awkward direction equal reps and it will catch up.
