As bounty hunter my advice is
1).Take time to monitor closely the progress of the project you are promoting to see other opportunity apart from the bounty reward
2).Be ready to invest when opportunity present itself.
With the number of bounty hunters increasing by the day,the reward is more likely to reduce than to increase. The earlier will accept that and move on the better for everyone of us. We should understand that, crying for unrealistic rewards can make developers and teams to promised unrealistic rewards.
It will be very hard for other hunters to do what you are doing for the reason that a lot of them is not that good/ don't have any experience with it. And also, as time goes by, the rewards are being decrease because there will be more participants and the rewards will be divided to the number of it.