Health insurance and pension plan?
Seriously though, OP's idea while based on a valid concern (we're are sending barely half of available sMerits) seems to assume that sMerits are scarce. Which they mostly are, but not for theymos. He can produce any number of them at any time, i.e. add more merit sources and/or allocate more sMerits per source. Which he's already doing. Incentives would probably skew the system in undesirable ways.
But if that is not enough we can always go to plan B(eheadings).