When set up in the 2H side stack position, you want think about keeping your body vertically planked and pack the shoulders down & back into the lats. Not many know about the lats, but they are the giant muscle wings of your back and can not only protect your shoulders, but give instant strength (if engaged right). This is extended into the pressout by keeping your elbow pits externally rotated up to keep the lats engaged. If the elbow pits rotate downward (bottom right in picture above), then the traps get more involved and impinge the shoulder girdle and result in poor strength output. So think you want to “break the bar” to emphasize this when the arms are fully locked out. If you have strong glutes, you’ll have a stronger low back — then in relation if the lats are strong…the shoulders are stronger.
So what about the core? This is where the steel club pullover ties this together. Notice in the bottom left in the picture above, this is what we want to avoid in the pullover position. This is called rib flaring, and it’s a major sign that you’d rather use your low back instead of your core. This commonly done with those that press and snatch in overhead loaded position, and overtime can lead to a serious injury if not corrected. With the clubs elongated shape pulled over your back — you still want to keep your lats engaged by keeping the neck long and brace your stomach by “hiding your ribs down.” This cues to resist the rib flare action and to maintain your body’s vertical plank (top left). This abdominal brace action should feel like someone is about to punch you in the stomach. While the Steel Club 2H pullover to pressout is a dominant “upper body” exercise, the core and lower body are still a major part of this. The human body works as ONE kinetic piece, not like Frankenstien. Of course, you can go beyond just the two handed pressout to pullover variation. Watch this Steel Club Education 101 tutorial to see it in action with singles & double variations: