A year or so ago -I was just fooling with props and stuck on a 24x10 MenzS.
It ran 5800 as I recall.
I was really surprised.(reqd that stunned)
remember this is a 2.4 - I believe all the comparisons I hear are with larger engines. (understandable)
I will try this again---
But basically -I will be opting for 10-12" pitch props .probably 20-22"
The 22x8" stuff just goes into "blatt" -instantly.
I probably will be using MenzS 22x10--The Mejzlic ar simply pretty props at our altitude -very pretty -not very good. The lowly Zinger Pro loads heavier-in the 7200 range
Don't you find the same thing?