yeah i went through a couple of versions of this before i posted it. and one of the things Blake said to me was that the elbow stops coming forward and the forearm swings out before the shoulders turn past perpendicular. seems counterintuitive but i'm not going to argue much.
it's not that the forearm releases completely before the shoulders open from 90 to facing up, it's that you aren't faced up when the forearm BEGINS to release.
static frames can only tell so much of the story, there's a limit to it, which is why i don't really think slow motion and frame by frame stuff are as useful as people think they are. it's nice to have some marks of position but people tend to forget that it's a PROCESS from moving from 1 position to the next and not just about those static frames. e.g. you could pick 1 frame later in each breakdown and still not tell the whole story.
there is a use for breakdowns, but remember, it's a flowing process. things happen because of other things. you end up in certain positions because of timing, motion, and other positions.
keltik did a pretty damn fine breakdown on some of the key spots. that picture of dan = #5 on his drawing. as for the plant leg, you'll find leg length, which part of the foot that is pivoted on, relative athleticism, run up direction/length, etc. will all play a factor into that. this is why i preach for people to formulate their own interpretations while integrating key concepts. everything will be unique but to achieve great success, several things need to be the same.
any of those guys who throw the arm up.
the reason why the off arm is prominent in swedish technique is that it serves a very specific purpose. grab a hockey stick (or any kind of stick) and act like you are going into a lefty slap shot and you'll see the parallels.