How to find fair

[Jackson Long]

This is basically a rewording of another post I did.  The other one didn't get much traction and I would really like more input.  So I am writing it up a bit differently in hopes of making it more interesting.

My partner and I are buy-and-hold-brrrrrrrrr investors.  He writes checks and keeps his day job.  I work full-time to manage and build the business.  Neither of us had any experience when we started.  I now have a lot of experience- he still has none.  As such the relative value that I contribute to the business has grown substantially.  I would rather continue to work with him than move on- but I think a renegotiation is probably due.

With this sort of arrangement- what sort of split do you think is appropriate?