Once the basic balance is in place, you need to make sure the mix does not fall apart on more limited consumer playback systems. For that, switch to Osinsky Small - Cubes, the Auratone cube emulation.
At this stage, you are intentionally taking attention away from width, sub lows, and top-end range. The question is whether the mix still holds together in the midrange. Because the virtual speakers are positioned close together, the presentation becomes more focused. If the vocal, rhythmic foundation, or lead instrument loses too much clarity when you switch to the cubes, it usually means the main balance was relying too heavily on sub bass, stereo width, and a bright upper range.
The job here is to adjust levels, EQ, or, when needed, add density with saturation so the mix still translates through the midrange. Once the midrange balance is working, return to Osinsky Small - Main and check that the changes have not damaged the overall balance, energy, or sense of space. After that, you can move on to the additional control perspectives.