When DDGs were a new deal, the high sulfur killed a lot of cattle. Experience has taught the suppliers to have it assayed and they blend it down if needed so that acceptable levels are the norm now.
Seldom do we see problems from high levels anymore, I think there can be "hot spots" in the feed that contain an elevated level. And some animals are just individually more susceptible to problems. Remember a case where a guy was allowing free access to a tank of the syrup product and got in trouble.
