RE: YS160DZ loads up in vert
Thank's Dave, you were right on. I checked, and I was turning the 17x10 well over 8,500 RPM. I could swear that it wasn't over 8,500 a few weeks ago with that prop, but the point is moot. I propped to APC 17x12, RPM dropped to 8,350, and my problem went away.