Live voice. Unscripted follow-ups. Scored against the rubric BCG, Bain, and McKinsey actually use.
A senior asks you the question. You crack it out loud. They push back when you fudge the math. They score you on the same rubric your interviewer will.
CV walkthrough, motivations, two STAR stories pulled from your background. Not generic prompts.
Sit your first case above — we'll save the score, the transcript moments, and the gaps to fix.