The mission...
Good comments...good food for thought while I plan and wait on my kits.
My thoughts here center around how one would use the instrument, and under what conditions. In planning, things are gonna be real bad before the G5 is what keeps the shiny side up. But it’s a contigency to be accounted for. However, it seems that most GA accidents happen as a result of not paying attention to attitude and airspeed....even when that data is in it’s normal every day position right in front of our eyes. With this in mind, I will likely set up my panel to be optimal and efficient for 99.9% of my flying. A slightly inefficient cockpit “workflow” is much more likely to result in problems than a slightly off-axis BU instrument, IMHO. If instrument discipline is lacking, it will be an issue regardless of ADI position?
More simply put...i recommend considering what you give up before moving the BU closer to a normal eyeline, and guard jealously both efficiency and comfort of the devices that are used in the majority of your flying.