Sam;
No, the two perform almost identically. The bromate MAY contribute slightly to a little more dough memory (snap-back) than a non-bromated flour in SOME circumstances, but for most of us, you will never see the difference. The reason for the bromate in the first place is to improve the baking performance of the flour when used by the bread baker. In most pizza applications you would be hard pressed to see any difference between bromated and non-bromated versions of the same flour. My take is if it doesn’t help, why add it, and besides, the health concerns over bromated flour are also a consideration in asking for a non-bromated flour.
Tom Lehmann/The Dough Doctor