Id just like to mention a few other things that need to be considered with this mod.
Modding this equipment is not for everyone, it is technical and can be difficult if you are new or not entirely familiar with this type of equipment.
I want to show what can be done with some of the hardware, and I have acheived results that I am happy with, but there are so many variables and your results may be different.
The motor and prop change on the test bench shows better runtiume is expected as the modified drivetrain is slightly more efficient.
In reality other factors come into play as well. The bought T-motors with the prop adapters installed are slightly heavier than the stock motors, and the APC props are heavier too. This weight addition ( x 4) will likely negate any runtime extension that a minor efficiency increase will produce.
As I have said earlier, my two main reasons for doing this are percieved reliability and noise/vibe reduction, and I have shown what I was able to acheive.
Another factor is balancing. Balance everything that spins, if you can. This is crucial. If you do nothing else, learn how to balance props, and then look at your motors.
The reason I like the APC props is that they can be balanced very accurately, and show the same reults on different balancers (rolling and magnetic)
The self tightening props, whilst they are convenient, are a pain to balance. You are forced to use a screw in shaft on a balancer and when the thread bottoms out in the hub, it goes off center slightly, altering perfect balance.
When balancing a prop you need to be able to turn the shaft 1/4 turn inside the prop to re-check balance (and to check that the balancer shaft is not bent), you cant do this with the screw in shafts as they presently are. I have them all, and even the ones that say they are 'precisely machined' bottom out in the hub and go slightly off center. The shaft at least needs to have a shoulder that contacts the prop hub before the thread bottoms out, thus staying square when it is tightened..
What may appear to be a perfectly balanced self tightening prop will not be, and will still cause vibes under power in the air, and you will wonder where the vibes are coming from.
BUT, the bottom line is, any balancing efforts will be beneficial, if you have a prop that used to tip over on the balancer and you added some tape and now it doesnt tip, then you will have reduced the vibes in your craft, and probably in your video as well.