Hello @all, hello Devik! Whe have got a little confusion here. What of the following statements is true? - The ceil of a class should always be at least as high as the sum of the rates of its children. - The rate of a class should always be at least as high as the sum of the rates of its children. Thank you! Greetings, Nils _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/