I've been looking for a new racing shoe for 5k races and this one sounds almost spot on. I've had the Ronin 2's now for a year and love the stiff spring I get from them for speed work on the roads. Has about the right amount of cushion for me when I'm looking to do shorter fast runs. Main problem is the high heel drop and my tendency to "catch" the ground with my heel in them, something that disappears in my 6mm and lower dropped shoes. It hasn't caused any injuries but it's just distracting for me. Has anyone tried the Ekidens and can comment on the amount of cushioning? They are mighty expensive but if the cushioning is closer to the ronin 2s (which was before ap+, btw) than the universe 4s then I'll make the dive, as my ronins to this day are still my best fitting shoes and I actually like the mild heel counter on them.