Eric the thrust provided by a high quality prop is an order of magnitude over the Zingers. In fact I have flown the standard Zingers and compared them to the Pro-Zingers and I thought the regular version pulled better on my large glow engines. The biggest problem with Zingers wood props is that they flex and tend to flatten out, reducing the pitch, at high rpm and during fast throttling of the engine.

I have no idea if you have ever flown a zinger on a small engine, say an OS .46, and then switched over to an APC prop. If you have you most likely recall there was a significant differnce in performance by going to the stiffer prop. The blade and airfoil designs of the APC props are computer optimized, as are the props produced by companies like Menz, Bolly, MSC, Xoar, NX and a whole slew of others. I still think the biggest difference is in the quality of the wood the props are made of as the Zingers simply are not as stiff as the others.

Trust us on this, when you get a good prop on that plane it will really wake it up. Zingers are fine for cubs but for high performance aerobatic aircraft they simply don't cut it.