A crew going from a line to a V: in your head that's simple. In the first version of Stickography the dancers glided across the stage to their new spot like skaters. Their legs danced the next move, but their body slid along underneath.
Why it slid A change took at most two counts and started exactly on the first count of the new part. The position was shifted a little every frame while the feet kept dancing the move. On top of that every dancer walked in a straight line to their new spot, even when that line went straight through another dancer.
Steps on the count Now the dancers really walk. They step on whole or half counts, the standing foot stays planted on the stage, and the hips drop and shift with every step. For a small sideways shift it becomes a step-close instead of a walk.
Arriving on the 1 The most important difference: the dancers no longer leave on the 1, they arrive on it. The travel happens in the last counts of the previous part, and the last step lands exactly on the first count of the new one. So every new formation starts with a hit, like a real crew.
Not through each other Paths that cross now bend apart. Nobody walks through anybody else, and nobody ends up anywhere other than where you put them.
It's a detail you only miss when it isn't there. But it's exactly this kind of detail that turns three stick figures into a crew.