OK, so if I understand correctly you’re concerned about what happens to compulsory contribution flows if you have MA at the BHS and SA at the FRS. I’ll probably have to run a simulation to illustrate, but for now I’d point out that you still have a lot of compulsory contributions landing in MA even when it reaches the BHS. That happens when the BHS increases every January, opening up room for compulsory contributions (and possibly voluntary for that matter). Any time you pay your own or a family member’s MediShield Life, CareShield Life, ElderShield, or Integrated Shield premium you open up some space. (I’m assuming AMCS doesn’t apply here.) Anyway, it’s not as if you reach the BHS and all ends. You’re still putting funds into MA in typical scenarios.