It's frustrating that Canon makes cameras for a fantasy marketplace in the past rather than what real people actually want today.
I have the carbon fiber props for the Phantom 1. They made the craft more responsive and it seems to have an easier time staying in the air. I didn't see any real improvement in hovering/holding position as that is really due to air currents more than anything. On a side note, the carbon fiber props also turned it into a flying lawnmower so keep your distance from living things when flying with them.