I would suggest removing the % progress indicator on each efficiency level. It's irrelevant with the x/y indicator in place.
Also, on the right side,
Variants Unlocked should be displayed
after Efficiency Multiplier. The provided wireframe could be misinterpreted to mean that the efficiency multiplier applies to all variants.
Finally, I'm not a fan of having the icons for each efficiency in the middle of the display if it causes the display to require a scrollbar. Remove the icons from the center overview cards but retain the enlarged icon for the detailed efficiency display on the lower right. Move scrollbar support for this view out on the roadmap as a feature enhancement in case you all decide to add more pilot skills later on.
Also, the wireframe should probably reflect a select state for the efficiency cards. Right now it's not clear which card you're getting details for.
Edited by Stalkerr, 29 May 2013 - 10:16 AM.