Why should you care about light prying goblet squats—from the perspective of different “weapons against the weakness” of the StrongFirst system?
Bodyweight Skills
A flexible pelvic floor (and hip flexors) is a key prerequisite for the hollow position, a foundational skill of our bodyweight strength training. A strong hollow position means solid one-arm pushups or strong tactical pullups.
Kettlebell Lifts
Hips that move well allow you to hinge better, which is essential for swings, cleans, and snatches. This will not only save you from possible troubles with the knees or lower back but also vastly improve your performance. And of course, the prying goblet squat is a natural lead-in to kettlebell front squats.
Barbell Work
The goblet squat builds the base for Zercher squats (my personal favorite), barbell front squats, and back squats.
It improves hip mobility.
It is a go-to warm-up before any barbell squatting and deadlifting.
And it is a green light for the bar. As Dr. John Rusin puts it: | 
