The 9450s are a bonafide replacement.Thanks Jason. The manual calls for 9443 and 9443R.
I know which props you are talking about... I bought 2 full sets (8 total). I was working on rebuilding an off brand GPS drone with brushless motors and was going to custom fit those props on it. While I was slowly rebuilding that drone I got my hands on a P1 that has seen better days. So I ordered a second set since the first set would no longer be of use. It took so long for those props to show up I also got my hands on a P2. About 2 days after I got the P2 those props showed up. I slapped all 4 on the P2 and it looked like everything was running smoothly until after I gave it some power... it was responding like normal it was moving a little slower at first and then suddenly it bolted like a bullet and it was not responding like normal... the motors were working harder... the flight wasn't smooth at all it was choppy... the suddenly it happened... it dropped right out of the sky about a block and a half away from where I launched... I had seen the area where it crashed and prayed it didn't do any damage to anyone or anything... I get down to it and thank god no one was hurt and no property damage... just the Gimbal came off... so after my heart attack was over and I returned back to my place I took the same 4 props and slapped them on the P1 just to see if they were the problem... oh yeah they were... same exact thing happened to the P1 and it almost crashed in the same spot as the P2...Is there any advantage to using a three-bladed propeller?