In part 8 of the series, I show you three tuning flights where I am getting the last bit of propwash oscillation out of my KingKong 5040 tri-blades. Eliminating propwash is one of the things that separates a good tune from a great, or even perfect tune. The techniques shown here aren't guaranteed to work for everyone, but hopefully they will provide some insight into how I approach the problem. Also, this video shows the types of maneuvers I do when testing out a tune, which I am often asked about.