The 8.75x9 is a good safe starter prop. I usually use the 8.8x9.0 or the 8.8x9.25 depending on the WX and elevation. I,am no engine man but you will love that engine, just crank, pinch test and go they are very user friendly considering their performance. Expect to see somewhere around 19 to 19,5 static. They unload in flight considerably.

John