OK, here are the props I ran,

A MasterAirscrew Scimitar 9x5S rpm====12,100
A Taipan 10x4 rpm================9,200
A Graupner 10x5.5 rpm=============9,000
Idle==========================3,100

I only got a single outside photo to take, its really difficult to take them in the fall, as you can see. This one about two clicks from the peak. I don't seem to have a 10x6 of any brand. I think you can take a look at the Taipan and see why it made only 9,200 rpm but that dude makes some serious wind.

The fuel was Davis ABC blend.