So far i haven't considered that myself because the metz up front is getting great mileage and there is no issue at all running different brands. Some have used the avon cobra tho. I don't know if they even make dual compound front tires, but if they do i wouldn't touch them with a 10 foot pole. Last thing you need is a front with a harder compound in the center during a emergency stop. But like i said, i don't know if the cobra is dual or if anyone even makes dual compound fronts. It just seems insane to me. Not sure about how people are liking the cobras either because thats a relatively new experiment. Seen people using the rear storm tho now for a good year or more.