There is a base tune for the CCDBA CS on the Cane Creek site that was worked out by Cy, I think. Last time I looked it matched the tune settings he sent me when I asked back in February. Interestingly, there is a different base tune for the Rocket for the new CCDBA Inline – I don’t know where that’s come from given that the shock isn’t available yet and Cotic haven’t mentioned the Inline as a possible option.
You could just set the base tune and forget it until you feel like experimenting a bit. The Cane Creek field guide looks useful for people not used to tuning their own shocks (like me).
There is an internal setting (i.e. not user-adjustable) that sets how much effect the Climb Switch has. Again, according to Cy, the shocks supplied by Cotic will have this set specifically for the Rocket – I think Cy found the setting on the shock he was sent to test to be too soft, so it should be set a bit firmer than default. The CS just adds a set amount of low speed compression and rebound to the tune the user sets him/herself.