Also, besides having a manual program, you can have your HCP set a lower noise floor for Spheric noise reduction kicking in. See this post: Phonak Sphere l90 versus l70 - #44 by jim_lewis. You can have increased or decreased directionality and increased or decreased strength of noise reduction (first image in link) as well as vary the noise threshold (2nd image).
Since I have not received my Spheres yet, I don’t know how the strength of noise reduction affects speech intelligibility. With more classic noise reduction algorithms, increasing the strength of noise reduction eliminates more noise from the speech you want to hear but also bites off increasing amounts of speech sounds needed for intelligibility. So, there is a Goldilocks zone, and there may be too for Spheric speech in noise processing.