C Record brakes are Deltas. The Cobaltos were provided as some riders didn't like the Deltas (although I find they brake very well)
If you want Cobalto look with the "blue gems" you will need Super Record callipers (script "Campagnolo" not block) and wipe some blue paint into the script.
They weren't provided as a choice. They were introduced cause there were problems with the first gen. Delta's. They are still considered part of the C-Record group.
I'm well aware that Cobaltos are considered C-Record, And of course they were provided as a choice - no one was forced to use Cobaltos some riders used Deltas some used Cobaltos.
C Record brakes are Deltas. The Cobaltos were provided as some riders didn't like the Deltas (although I find they brake very well)
If you want Cobalto look with the "blue gems" you will need Super Record callipers (script "Campagnolo" not block) and wipe some blue paint into the script.