Riley Moserwrote a review of Atomic Tracker MNC 16 Alpine Touring Binding on May 12, 2016
Familiarity: I've put it through the wringer
Read the other review. Just get a different pair of bindings. I couldn't repair these in the field on a ski tour yesterday and was forced to boot out.
Major problem: The aluminum rails have hardly any durability where the rivets were put in as seen in this photo. Honestly it would probably be a safe bet to just go with a tech binding set up and a solid DH setup.
At Crested Butte last year my friend on the CBMR ski patrol said all the patrollers had the bindings fail on them back in 2014.