I left a comment on another post, but basically I feel 50/50 is a good distribution. Both Authors and Stakeholders bring value, neither can exist without the other.

The ability to customized curation rewards on your own posts has been discussed and I think it creates a race to the bottom scenario where authors will continually raise the curation percentage to artificially influence more upvotes.

4% isn't the end of the world, but in general, I'd prefer to just have 50/50 and encourage more organic voting.