Guys,

I would have to disagree on that.

A prop with a higher pitch would need the plane to be going much faster, to unload to the same degree as a lower pitched prop. At that same speed, the low pitched prop will already be "turbining" even faster.

The reason high pitched props are not recommended, is their relatively low static thrust, when compared to low pitch, large diameter props that impose the same static load on the engine.

I set the high speed needle while the plane is "nose up".
If the plane can only pull itself up vertically, or cannot hold its own weight up, just peaking the engine is enough. I richen it only about 100 RPM, just to keep safe.

If the plane can actually accelerate vertically, I richen it by 200-300 RPM, but it equates to more when the plane is set to a horizontal attitude.

If the plane is capable of 120 MPH, or more, I make it 400 RPM rich, with the nose 'straight up'.

This way I cater for the effort the engine must make to draw fuel, in the specific plane.

Sincerely,