d nice said:
Most of what you know and love in ECS is taken directly from Lindy Hop. We use a bit more "natural" lead/follow to create the exact same moves.
This is another point. Many of the moves I learned in ECS such as the continuous tuck turn, pretzel and reverse pretzel, wrap in and yo-yo and arm slide; I myself have never seen lindy hoppers use any of these patterns making me think these are perhaps purely ECS style allthough They do work with eight count as well and some of the lindy follows who have danced ECS with me thought they were actually quite cool.
Are they a part of lindy too?
Again, I can only go by what I see here.
Then again, there are those who dance without any obvious or subtle connection to the phrasing of the music. That would be why I started that sentence up there about lindy leads with "Good."
Also recommend you go back and read some of the posts on the evolution of the swing dances. (I don't have the time right now to find the links for you; sorry.) All of these six-count moves, all of these dances, have their roots in LH.