Continuing last week's discussion,  Al Fadi and Dr Jay Smith say that Ibn Mujaahed chose the seven Kira'at in the tenth century.  The criteria for choosing them was popularity.  Hafs differ from the other Kira'at by 93 thousand dots and vowels.  Therefore the preservation claim does not stand the test.  They give several examples between the Hafs and Warsh: 1. Sura 2:184 ; Al miskeen and Al masaakeen; the first is singular noun and the second is the plural form of the noun. 2. Sura 3:146; the words kaatala (fought) and kutila (killed). These differences have huge theological and practice implications.