KCee I find I can mulch them the first few weeks they are falling and at the end when just the oaks are letting go, but those 2 weeks when they really let go there's just too much. I think if I could mow/mulch more than once a week it would work, but I don't have that kind of time.
My Toro has a mulch kit on it. I only mulch when the leaves start coming down. It has a combo cut/mulch blade. To mulch all I have to do is to clip on a plate to block the discharge chute. I can plow through 2' deep oak leaves. It takes two or three passes but they all finally disappear.