I have used MSC 22-8 on DA50/slimline pitts and MSC 23-8 on DA50/KS1060, both combinations were very nice. The MSC is a thick and wide prop and like said, it a lot of wood. The 23-8 from my memory only turned 6500 but was good. Both Props are very well behaved in the sound dept. As far as down line breaking the 23-8 wins IMO. I still have an MSC 23-8 and might try it again when I get another 50cc plane. From what I have been taught, use a bigger prop on lighter planes and a smaller prop on heavier and larger planes. I love the DA50 and my favorite prop on it is the mejzlik 22-8.

HTH

Joe