Could strange matter enter a second phase during black-hole formation?

My hypothesis is that when a star containing strange quark matter collapses into a black hole, the strange matter could reach a critical density and transform into a second phase that forms the core. I propose that this core could gain matter, expand, and get denser as the black hole forms. I explored the idea with an AI-assisted calculation comparing two model stars in equilibrium. In the chosen model, the larger second-phase core also had a higher average energy density. Whether a single core grows this way during collapse and persists inside a black hole remains open. The supporting files include the technical note, Python code, and numerical results.