Wide stance, explosive bounce, all on a wobbly dome.
Keep knees tracking out over your toes, never letting them cave in.
The wide, toes-out stance sets your quads up to drive from a deep sumo position, and exploding off the dome turns that drive into a jump you then have to land back on an unstable surface. Your glutes power the hips through both takeoff and the soft, knees-out landing. It earns a place as lower-body power training with a built-in accuracy demand, since every landing has to find the dome again.
For experienced trainees with clean landings, yes, it builds power plus landing control at once. If your flat-ground squat jumps are still noisy or your knees cave, master those before adding the dome.
The wide, toes-out setup gives you a more stable base on the curved surface and lets you sink deeper before exploding. On a dome, that extra stability is worth having.
Land thinking knees out over the toes, and sink into the landing rather than sticking it stiff. If they still cave, reduce jump height until the landing pattern holds.
