I would have to side with Richard L

I have come to believe that there is "affirmitive action" scale and scale itself. Both will work in there respective circles. I have been in both..

I am about to get a CMP 54" P-51D. I'll fly it with a 2 blade. Although I could build a carbon scale blade for the P-51, the engine needed to turn the scale blade would probably rotate my airframe easier than my prop.

But I have a BF 109G that will fly with my carbon scale size three blade with correct blade shape . The model would fly with an OS 108 two blade, but I have purchased a Moki 2.10 for my scale blades. Should work. ??

Steve