I had the exact same experience with my Giro Jacket and Riddance Mid shoes. My Jacket Mids were about 2 seasons old when the tread wore all the way down to the sole, and bought a pair of Riddance Mid shoes to replace them. I love everything about the shoe, from the elastic loop to hold your laces, to the ankle strap that keeps everything snug. Everything but the grip - the first lap down my feet bounced around so much I thought I lost all the pins on my pedal. After half a season of bike park riding they still hadn't broken in, and I ended up wearing my old Jacket Mids to see if the shoes actually sucked or something was wrong with me. The worn down Jackets had way more grip than the Riddance! I've ended up wearing the old shoes for every ride since then.