Jerimy Arnold wrote a review of Dynafit Low Tech Race Binding on July 11, 2013
Familiarity: I've put it through the wringer
After a season of racing on these, there is no disputing that these bindings are designed to cruise uphill. As others have pointed out, the downside is that grooves develop in the heel spring. Also, I needed to adjust the toe lock tension screw after the lever and lock bump have both shown some wear as well.