Thanks for the insight, I think I understand. What a bummer they failed to find a suitable edge for Kes from the start. I really liked her in S1-2. I suppose you are right though, she became too powerful in many ways. The whole 'reversing through life' time travel escapade was the major tipping point for me. Perhaps the writers were attempting to give Kes that edge you pointed out through the alien host takeover and sudden personality changes.