ORIGINAL: cmoulder
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2 oz weight difference between those props???
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Maybe try a Xoar beech if they make them in the smaller sizes.
Yes, the 16X4 wide APC is a big ole heavy fly wheel of a prop. But it will make some static thrust. I have only flown my "wild stik" with it so far. Works great for hanging on the prop but I lose to much speed and momentum to enjoy the rest of the flight.
I have yet to find a Xoar in the 15" range. I also have to admit I have not tried that hard either. But I want to say they (Xoar) start in the 18" range.