Hi @abh12345, thanks for the review! I also expect a good fraction of auto-votes not covered by this approach. Steemvoter is certainly one of the bigger players there, signing votes directly with the user's posting keys so they are indistinguishable from manual votes from their signature. I'm a bit hesitant to confirm that the reward pool share hasn't changed since the last analysis with a larger time scale. We've seen considerable fluctuations across days before, so there is still a chance that I hit a day with comparably high or low relative share.
I'll go for bigger pies next time :)