I am currently trialling the carbon version for Pacerpole (or, to be exact, the bottom half). I have tried various combinations for comparison .... both poles with a carbon base, one with a carbon base one without and both standard.
The main difference is that the two section pole flexes very slightly more, which I don't mind but some might find a little disconcerting. Also it does not fold as small .... a fact that again doesn't worry me as I never pack mine up.
To be honest I don't notice the weight when I'm walking, but they are certainly rigid enough to support all my weight if I have to lean on them or "vault" across an obstacle.
Let us know how you get on with them ....