Check this out guys,last week i had a 23-8 xoar prop on my da-50 wh edge,was taching at 6800 and pulls the plane with authority,this week i put a airwild nx series 23-8 prop on,looks identical,but obviously a diffrent wood used,anyway,now the plane will only tach at 6100-6200!and it flies the plane much weaker,both props were balanced properly,also just ordered two more of the nx props cause ive heard good things,wish i had'nt now,i will definently be buying more of the xoars,they are the best prop ive used yet.