These were the first tech binding for me - they are light and work well although they are hard to click into the heels for ski mode especially compared to Speed Turns which I just have to barely weight to click into. This is not a problem on a firm base but can be a little annoying on a powdery hill.
The only negative for me is the high lifter is not high enough, even with the BD (1/2 inch) extension. And now I have a problem where it appears the lifter has gotten loose and while breaking trail will fall back (seems the snow is pushing it back?).
Has anyone experienced this? Very annoying to have to put the lifter back up every few steps! Any ideas on how to restore the stickiness of the lever or might this be a warranty issue. Without the BD extension though, there might not be an issue.