I've been trying all sorts of props on my Y6 running with DT750 motors in an attempt to get stable yaw and minimal vibrations. I currently use 3S batteries. The GWS EP1045 slow flyer props were the most vibration free out of all the prop's I tried, however one thing that remains is that the lower props occasionally get into an odd harmonic flutter which suddenly changes the yaw. I read somewhere that you should use props with a higher pitch on the bottom motors however I cannot find any slow flyer 10x6 props on the net. I tried my 12x4.5 DD props on the lower motors but these just elevated the vibrations and made the Y6 slightly unstable and hard to control yaw. I also read that some people had more luck with 4S batteries and even using tri-blade GWS 9050 props.
So this is a call out to all the Y6 flyers out there, regardless of the flight controller you use - can you list your motor kV, battery type and upper and lower prop sizes/pitch/type. Also list out of 10 the stability you are getting in roll/pitch/yaw and any notes about harmonic vibrations you might be seeing and if you found tilting the motors made some improvements. Anything info that we can gather in this one thread will be really helpful for all of us flying Y6 multicopters. Hopefully this will allow us to narrow down what the best configuration is for Y6.