I actually do like the episode "Fury." Even as a fan of Kes. It's a fun episode, action packed, and it features the Vidiians again who are one of my favorite villains. For my own personal canon, if you will, I accept the String Theory books explanation for the Kes we saw in "Fury." Just because I don't see the friendly Kes we last saw in "The Gift" twisting so far evil as to want to kill all of the friends she made on Voyager. Not just kill them but actually torture the crew by having the Vidiians remove their vital organs.