FYI, DJI is not out of stock on propellers; I'm sure they have a thousands. They use the "out of stock" indicator to basically tell Americans "we're not selling to you for now." Your best bet is to go to the Classified forum and ask about...
I've been using the Master Air Screw props on my M2P for about two years now. I haven't seen any real benefit in terms of noise or extended flying time, but they have worked fine for me.
I've found them more fragile when "trimming" tree branches and in bird strikes. They tend to shatter rather than bend, leading to more prop damage, and a greater likelihood of not being able to recover and still fly back home on lightly damaged...
Stopped using DJI rotors about 5 years ago, switched to MAS STEALTH and then ENDURE. Definitely a lower audible tone and because of the wider blade profile: I find better performance at higher TOAL altitudes.
I have a question i need replacement blades for my Air3s and I want to purchase original blades but DJI is sold out of them. I went to Amazon looking they had none for the air 3 or 3s. They had for air 2 but not sure if they would work. Is their...