I keep going back and forth about changing the reward 'economics'. I'm coming to the realization, that as long as you change it from one fixed model to another, the gamers will adjust to exploit it. I'm not an economist, but I think if you made the ratio a variable chosen by either the author or curator, you make it more difficult to game the system. I lean more towards a slider for the author, since they technically 'own' the content. Curators could then decide whether or not they want to engage with that author depending on what reward balance is being offered. Stats could be gathered, and authors can be categorized based upon curator friendly or not. Tools can then be built to readily identify them. I think there should be a slider from 0-100. This would cover 2 edge cases. The case of an author wanting to give 100% of rewards back to curators to reward them, and an author capturing 100% of the rewards (think a charity or steem developer account).