RE: WHICH IS BETTER, ZINGER OR TOPFLITE PROP?
XOAR props if you are looking for something that really works in the price range you are looking for.
There is no one choice on props, you have to try out different makes and sizes to find the one that will fly the plane best for you or the way you want it to fly.
I have liked the APC props with that engine but the plane was an Extra, the plane type counts A lot.