def initialize_value_objects
      @value_objects = SimpleTypedList.new Cfvo
      @value_objects.concat [Cfvo.new(:type => :percent, :val => 0), Cfvo.new(:type => :percent, :val => 33), Cfvo.new(:type => :percent, :val => 67)]
      @value_objects.lock
    end
Initalize the simple typed list of value objects
I am keeping this private for now as I am not sure what impact changes to the required two cfvo objects will do.