An F harp is usually not great when using a traditional “Cup” but the Harp Wah does a great job at bringing out the right frequencies.
You also might be interested in
Love this tune for working on my phrasing and rhythm[...]
Funk and Acoustic Harmonica. I find the Harp Wah works[...]
New Orleans-like groove with the Harp Wah
New Lesson...
Explore the mindset and approach to developing your own personal musical style.