Great speakers roboss! The Argos might now be my favorite Daedalus speaker
It must be the angle of the picture, because each speakers is about the same distance to each side wall.
Make sure that side wall distance is exactly
the same for each side. It will help any soundstage imbalance there may be. Even an inch or two can cause this. Although, if there is an opening on one side and not the other, this may not matter as much, as there will be issue there too --that you might not be able to fix and keep the wife happy...
If you end up wanting or needing to go with a different rack, go lower. I have a rack like yours but it is the two-shelf super-wide. Still has space for 6 components... Just a though, as it does improve imaging some.
And a terminology correction, for future conversation and possible confusion: Most call the wall behind the speakers the "front wall"
The Ulysses have a MTTM driver configuration.