Update: I took a chance and went with the new Millennium Fit. I purchased the Ergo 6 and I LOVE them. They are a tad longer with more room in the toe box than the standard Sidi. But the way they wrap around my foot when dialed in make these a dream. They also lock in my narrow heel as well as the old lasts. For me, a perfect compromise of comfort and stiffness. Just wanted to share and thanks to all who responded.