Without VI, Echo is only PS6. Meaning he is moving with the likes of Garven, Dutch, Backstabber and Jendon. I would rather build to 99 points and spend a point to make sure I dont have initiative and move after everyone (with a few exceptions).
That's where Echo and Whisper in my opinion, Whisper wants the Initiative so he can shoot first get his focus and get his cloak up versus Echo caring more about dancing around not wanting it