Those are the most interesting ones I could think of. I'm not really one for the first ideas that come to mind. Maybe if you tell me why they're iffy I can fix them up for you. A couple more ideas that might work are Hyperkinesis (Perfect synchronization between body and mind: perfect balance, perfect aim, and greatly enhanced motor skills. Things that would injure a normal human, like falling off a swing, could be gracefully turned into a roll. Other uses include calculating complex probabilities of life in advance, or reacting on a speed faster than most humans would be able to), or Electromagnetic Perception (Can 'see' the entire spectrum of electromagnetic wavelengths, and perhaps influence them as well. Includes radio waves, signals, etc.). Dunno, I'm not super-thinking right now.