The 2nd gen. C-Record rear mech won't support indexing. Fortunately, at least it's a really nice shift you get with that setup.
Remember to pack the jockey and pulley wheels with grease; they are adjustable cup and cone types. I'm not sure how much play you should dial in, but slightly loose is better than slightly tight, especially for the upper jockey wheel.
The 2nd gen. C-Record rear mech won't support indexing. Fortunately, at least it's a really nice shift you get with that setup.
Remember to pack the jockey and pulley wheels with grease; they are adjustable cup and cone types. I'm not sure how much play you should dial in, but slightly loose is better than slightly tight, especially for the upper jockey wheel.