Buddy RC has better information
I've been using the pavlo carbon 3 blades from Ukraine. 14 grams and I have had no complaints about them. Just don't have a smaller size for a 40 size plane. I pulled the trigger and have one of the 11in 3 blades coming. Shipping should be here Monday and will report how looks when I get it. They have 12in sizes but I'm super happy with my pavlo prop on my TrivEal Pursuit XL.
Holy lightweight prop Batman! 8.5 grams is the listed weight of the Falcon 11.6X5.7X3 electric 3-blade. Too bad most of my flying occurs on a lumpy soccer field with long grass. I would be paranoid on every flight.