Load Balancing Multiple pool members

I think I came up with something 🙂 Please suggest what you think.

when RULE_INIT {
  set ::active_connections 0
}

when CLIENT_ACCEPTED {
  if {$::active_connections % 3==0) then {
     incr ::active_connections 1
     pool pool0
  } elseif {$::active_connections % 3==1) then {
     incr ::active_connections 1
     pool pool1
  } elseif {$::active_connections % 3==2) then {
     incr ::active_connections 1
     pool pool2
  }
}

when CLIENT_CLOSED {
  incr ::active_connections -1
}