The bar finishes in front of your head rather than stacked over your midfoot, and lockout feels shaky.
Finish with the bar over the back of your head, not your forehead
Ears should be in front of your biceps at lockout.
Cue "punch the ceiling and shrug at the top"
The shrug engages upper traps and completes the overhead position.
Do overhead holds and carries for time
Nothing teaches a stacked position faster than having to hold one.
Address lat and thoracic mobility
If you genuinely cannot get arms overhead, no cue will fix the lockout.
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