I don’t know, i have never try this, but i suppose that a try in a blank project is not too much time consuming. If it works : Really cool !
The interest of notify is that you’ll make it setting perfectly with your feet in snow / dust (one notify by feet) in your blend space movement for all speed. And that you’ll can do a spawn decal at location with no attach and no more needed to do by the grace of the garbage collection :p. But i don’t know how do the transition for walk / run. Maybe only have a notify in both anim and it does the job ^^ But if it does exactly the same : great ^^ I haven’t try yet.