Flex, the old cargbon drag I pulled out of the saltist was very smooth....too smooth in fact. I had the trouble where once the drag got started it was very easy for the fish to continue back to its hidey hole, I was continually having to thumb the spool to turn fish, even the not so big ones.
I have noticed that with the un greased carbontex, besides the increase in drag, that start up drag tends to be a little higher than what you set it at (say its set to 5kg, you need about 6-7kg to get it going) but once its starts, its still relatively smooth (not as smooth as the old greased carbon drag), but it maintains the full drag pressure the whole time and the need to thumb the spool is now almost non existent.
I should mention that I tested the drag out, the stock drag was good for just under 10kg, about 8kg usable, the new carbontex drag though, is now good for 18kg, 15 of which is usable. Not the most scientifically method was used for testing though, just used some weights from the bench.