I ran a Xoar CF 20x8 on my DLE30 and it turned 6500rpm static. My enigne is not broke in yet and I wasn't happy how this prop performed on my Giant Stick. I prefered the performance of the Mejzlik 18x10. It had better speed and vertical than the 20 inch prop did. I feel it was a bit too much load for the engine. A 20x6 would be the ticket or a 19x8 on your project.