Should it not be, that your voting power is distributed among your votes? If you vote once, in a day, then it is consumed completely by that vote. If you vote 10 times it is distributed equally among those 10 votes. But you have the incentive to vote often, since it is more likely for your vote power to be distributed among winning posts. This vote power would be different, something distinct from the current vote_power implementation, a different system completely.
the current system makes it most advantageous to vote each 38 minutes, which I find bizarre. If you space your votes too far apart, or too close, you lose out. And you are also asked (for maximum rewards) to hit a special target number of votes per day/week. it seems to be an illogical system for humans, giving bots big advantage.