From the blade 2011 pics it looks like a rounded choil. Instead of the usually squared off one. Either is perfect. I am also really hoping for SR77. My dogfather is unbreakable and I want another a factory price. In fairness I have not had a SR101 chopper so I guess I need to try it first. I know it stays sharp but I have no ding, chips or anything on my dogfather and I used it during an extrication class last weekend.

Zach