On this thread, and many others, folks have cautioned about trying to think/make a Zinger of any size perform well. Nearly everyone who flies aerobatic models learns very quickly that Zingers provide rpm and noise, and low thrust. Just about any other prop would be better.

Your performance with a DL 50, and either an NX, Xoar, or JXF 22 x 8 would just be an unbelievable improvement for you.

Many folks don't believe how ineffective Zingers are until they try a Mezjlik, Xoar, 3W, BME, JXF or NX. ANY of those, in the same diameter and pitch, will out pull any Zinger you could bolt on there.

Just suggestion that if you want optimal THRUST and best spool-up/transition and overall performance, dump the Zingers. [sm=thumbs_down.gif][sm=thumbs_down.gif]