Reward the first account whose balance is less than or equal to 1M FIM starting at block 10,000. That's an easy way to skew the rewards toward small stakeholders.
Give 50% to account at 10,000 (likely to be large stakeholder) and 50% to first small account following block 10,000 (guaranteed to be small stakeholder).
What prevents the large stakeholders from dividing their holdings to several smaller accounts, if we start to considerably favor small accounts? The annoyance just slows them down and wastes energy.
I'm not sure how the math works, but will X amount of FIMK forge the same number of blocks split across multiple accounts as it will in a single account?