Sorry, "10&10" as recommended by Drone Camps:
I bought the whole setup custom through ScorpionDrones, really nice work throughout, even the battery is black
Prop Guards are awesome so far (2 flights...) They were VERY easy to install, except that they came with two different length screws... Having heard about possible motor damage with long screws, I called Bestem and they were super friendly and helpful. Other screws were for P1/2.
Very easy to take off and on, and they fit right next my tablet slot in the case. I do notice them on the video, so perhaps if/when I finally use this for business I'll probably remove them.
Bobmyers -
The CF props do have the self tightening threads, and while I do have the stock props as backup, I haven't flown them yet. After a few more flights maybe I'll switch them out and see
-D