How about equity that's the same quality (not magnitude) that the company gives investors? I.e. instead of these 10/20/30/40 (non-uniformly-vesting) ISO grants

How about equity that's the same quality (not magnitude) that the company gives investors? I.e. instead of these 10/20/30/40 (non-uniformly-vesting) ISO grants, the company issues the employee monthly debt that is convertible into stock and has a preference on the company's assets if it goes under? How do we negotiate more meaningful equity?