No worry, @mingus. It’s not at all about accusing you of anything, everyone says something wrong when they meant something else all the times. It’s just for clarification because many folks can be reading this, so it’s more about setting things straight to avoid misunderstandings from other folks, that’s all.
I think the full effect as mentioned in the bold part above simply infers to the “open” paradigm while being able to still achieve a more balanced sound scene. Naturally if you set to Full Directional then you won’t get the full effect of the open paradigm. You’ll hear less or weaker sounds from the sides and back. On the other hand, if you set to Fixed Omni, then you’d basically employ only the one mic that’s set for the omnidirectional pickup and you won’t be using the other back-cardioid mic at all.
The Spatial Balancer uses the combination of both mics to do MVDR beam forming to create the null-directions to attenuate dominant noise sources and keep them in the background of the sound scene. By going Fixed Omni, you’ll have probably disabled the Spatial Balancer functionality altogether and you may end up hearing more noise than you bargain for. However, the DNN for Difficult Environment would still be in full operation and you’ll probably get the Neural Noise Suppression like before, although the sound scene would not be as well balanced as before so that’s probably what they mean by not getting the “full effect” when not in Neural Automatic.
But of course, for a music program, you’d still want Fixed Omni and even turn off the Neural Noise Suppression altogether. In this situation, however, you’d still be able to set the values for the Virtual Outer Ear functionality.