The Cofounder Equity Talk

I am starting this with a cofounder and we have not split equity: [WHO WE ARE, WHAT EACH OF US BRINGS - IDEA, MONEY, FULL-TIME VS SIDE, NETWORK, WHO QUIT WHAT]. Structure the conversation: the split logic that survives the next five years (contributions going forward weigh more than the idea), the vesting both of us need (four years, one-year cliff - and why it protects the one who stays), the salary and full-time-start differences, and the decision-rights split for when we deadlock. Then the three questions that predict whether this partnership survives, and what a lawyer papering this will ask us.