Didn't feel the need to start a new thread since it's a union question.
But can someone please list the union bindings in categories or order of stiffness. You know like what is in the all mtn, park, mid stiff, stiff, soft, etc.
The website doesn't help and I've been trying to figure them out while sifting through threads, but some of them seem so similar. It would be greatly appreciated.
Union generally does not like to give flex/stiffness ratings for their bindings. Among other things, they point out (correctly IMO) that it is not just overall flex, but also where the binding flexes - e.g., the Contact Pros have a pretty soft highback but a very responsive baseplate (similar to the Rome 390s).
In addition, flex on Union bindings changes from year to year - e.g., the 11/12 SL had carbon in the baseplate, while the 12/13 does not.
In very general terms here is a spectrum of Union binding stiffness from my experience (i.e., not including the DLXs, etc.) from Soft to Stiff:
Contacts < Atlas/SL 12/13/Contact Pro < MC < Atlas Team/SL 11/12 < Force (up until 12/13) < Charger
Union Inhouse might be along shortly to add/correct the above.