I purchased one of these 8-gram props from a Falcon representative at the US Nationals / WC in Muncie in August 2024.  I finally got around to some testing this May.

Although it performed beautifully, it failed when I attempted to simply remove it from the airplane. Photos attached. The prop is incredibly fragile.  Too fragile for me.

Here’s a summary of events:
•   It was perfectly balanced as received and the three prop blades were pitched very closely.
•   I was cautious when I installed it on the prop shaft.  I used a sandpaper washer to add some axial compression compliance and torqued it carefully with a minimum of torque.  (No torque measurements made).
•   I added 9 grams nose weight to keep the CG exactly the same.   No other changes were made.
•   I took two or three short flights to get the lap time dialed in and did some hourglass maneuvers along the way.
•   I then flew a full pattern. 
•   So far so good – great performance. 
•   Next step was to swap props and do a back-to-back flight with my baseline set up, an Igor Burger three blade 12” prop weighing 17 grams. 
•   To remove the Falcon prop, I carefully un-torqued the prop nut as I held one blade at the root to react the wrench torque.  The prop cracked at the blade root with a very minimal torque applied.

Observations
•   This prop is too fragile for use (IMHO)
•   I felt the corners were excellent with the lighter Falcon prop.  In theory the gyroscopic precession is reduced along with associated yaw due to the lower inertia of the lighter prop.
•   The Igor active control system came on harder and faster with the lighter Falcon prop.
•   The blade core is some foam like material

I will likely section the prop to see its construction.

I shared this info with the manufacturer yesterday.  Hopefully they will respond.