Hi cant comment on the 2012 version but I have 2 sets on bikes I own. A set of Elixr R
s and a set of CRs on the other.
The R`s I know I have never bled and were bought second hand work very well, dont squeal, drag, or go soft and they are top loading pads so pretty simple.
The CR`s were new in 2009 (i think).
I`m not sure I think I have bled them once, they have had a lot of use. Trips to Scotland, a lot of wet muddy lakes riding and next to no maintainance. They could do with taking off the bike, cleaning fresh pads and a bleed and im sure they would be good as new. There is a little play starting in the pivots of the carbon levers but its no biggee.
If the new model is as good as the old I wouldnt have a problem using them.