Try a Bambula 18-8 from RC Showcase. This is my favorite prop on my Moki 1.80. I fly mostly 3D. Hovering is no problem with this prop and downline breaking is very good. The paddles on this prop are pretty good size. It's also a quiet and efficient prop. The Mejzlik 20-6 is supposed to be very good also, a member of this forum said he got 6700 RPM out of it at close to sea level. The Menz 18-8 is supposed to be good also.