I am putting down the Brewcraft Mexican cerveza with the no 15 (500g dextrose 250g corn syrup and 250g malt) it comes with dried enzime. The HBS told me that the enzime brakes down the non fermentable sugars so the yeast can eat them is this true? they also said it will be 6% dose that sound right to you guys? or should I add more dextrose? and finely has any one tried this brew? is it any good?