@Arhael:
I think, that it's not about dark or light, but about emotions during fight. Juyo and Vaapad generates a lot of emotions, while Makashi is not.
Windu could feed himself on Sidious' (Juyo) or Sora's (Vaapad) emotions, but he couldn't do this when he fought Dooku or Yoda.
Sora - as a Vaapad user - could possibly feed himself on Windu's emotions as well. But again, he couldn't feed himself on Dooku's emotions.
If superconducting loop made Windu equal to superior opponent, then it might made Sora equal to superior Windu as well.