This paper proposes practical laboratory tests for a key Holosphere Theory claim: real triadic rotation can stay stable because coupled systems can emit defect-like events, redistribute strain, and recover coherence through multi-cycle (4π) reclosure. Rather than trying to recreate the full Holosphere lattice, we identify three analogue platforms that implement the same operational ingredients and can be measured cleanly: Josephson junction networks, gyroscopic metamaterials, and coupled optical cavity arrays. For each platform we map Holosphere concepts (phase variables, coupling stiffness, defect emission, winding/closure) to concrete observables and outline perturbation-and-recovery protocols. The core experimental deliverables are decision-grade signatures: threshold behavior, propagating disturbances, topology-dependent recovery, and explicit discrimination between apparent one-cycle return (2π) and full coherence-level reclosure (4π). We argue that consistent appearance of these signatures across multiple media would support the memory-and-reclosure motif as a medium-independent organizing rule, while null results under declared conditions would weaken it.