One of the biggest critiques of my control panel was that it was too damn big and I agreed. Sadly, I still lack the right tools do a professional job but, it works for me.
OLD:
Over the last week
I took of 2+ inches off the CP
Integrated the steering wheel more,
Remove the small xbox start and select buttons with real arcade buttons and relocated them to the top
Shaved off the xbox home button
Relocated the 8th button on the controller to be used as admin buttons on top (older games used the top four and fighting games use top 3, bottom 3)
Added a trackball
Added a shifter
I took 3+ inches off the box that contains the CP to have more knee space
Changed the Carbon fiber wrap to a Brushed Gunmetal wrap ( I may change it again, Im not sold on how shiny it is)
NEW: