24x12 3-blade?? I am running a 26x12 Air models :-D. It will be internesting to see how the motor turns it. You might be ripping that 3-blade :-D. I would say that either a Mejzlik 25x12 or Air Models 26x12 is the way to go with the DA. The Mejzlik has a wider blade so that is why you would need an inch less diameter. But I am loving my 26x12. Had to do some fixes on my FC after Saturday and I have a new rudder coming too :-D

Ethan