MyQul
Chairman of the Bored
This is all a bit silly! Corn and maize is exactly the same stuff, whether flaked or not. For breakfast corn flakes in the UK vitamins and minerals are added, sugar may be added, depends on brand. Cheaper grades of corn/maize are used for animal feed, this is what's used for brewing too. There is no special brewing corn/maize flakes.
In a way I agree its all a bit silly. I think what it all comes down to is, are you organised enough to put some flaked maize in with your current HBS order. Flaked maize is cheaper than cornflakes but if you cant get it together enough to put some in with your order, then the shipping costs added to ordering a kilo or so of FM makes it too prohibative to order it seperately. So thats when you might want to look at alternatives like cornflakes