I was not aware of DJI actually was selling carbon fiber props. I've only seen the aftermarket ones that says "for DJI
P4P".
I've seen a few articles/reviews on the CF props from Drone World and none were good.
I'd stick with stock props.
DJI sells the black plastic props, genuine DJI brand at Best Buy to go along with there BB black edition P4 so if you want the cool factor of black props just go with the DJI brand props. Not a CF prop "for DJI".
I had three different CF prop types different manufactures and different pitch for my two other quads (Yuneec) and I went back to stock props after noticing since they are so stiff the bird didn't handle the winds as well and didn't seem much improvement at all. They were the Aeronaut CAMcarbon Light,
MAYTECH 13x4.5 CF, and Maytech 13x3 CF. The Aeronaut CAMcarbon Light were made in Germany and Maytech made in China. All were factory balanced and I checked them all myself-all good.
The higher pitch did seem to be a little zippier in throttle response but even though I checked the balance on all of them my 4K grey Typhoon seemed to have more vibration in the camera gimbal than stock.
For sure the higher pitch I had to be more careful on descending down to avoid VRS and they chopped up the air below significantly. Descended using figure 8's, forward while left throttle down, circles, etc...
They did look cool but even after going back to the stock pitch Maytech CF aftermarket ones the ability for the quad to have flex in the props hindered the stability in video and still pics with much wind at all.
I didn't get any props in any of the videos due to the stiffness of the CF though.
Unless there was a specific DJI tested/manufactured prop that has been thoroughly tested with the
P4P I'd steer clear of them.
I much prefer the stock props on all my quads. No difference in battery life/run time with stock or CF.
Just my take on them, your mileage my differ and you might have different experiences with yours but that is my observations regarding CF props.