Sir, – I refer to “Ireland under pressure to publish official rankings” (School League Tables, 2011, November 22nd). Given that a significant number of students in the top ranked schools attend grinds, how reliable would these rankings really be? These rankings should take into account the impact of grinds, the number of students who took them and how many subjects they were taken in. In reality this isn’t possible. So should Ireland even bother to consider publishing these rankings? – Yours, etc,