Finally got a nitpick rather than a bug.
If 1 2 3 4 5 6 7, I've reorganized them as 4 2 5 1 6 3 7.
Now linear is in the middle and everything else expands away from that, and I just kept the S shape one at the end.
On the topic.. wouldn't it be cool if we could alt drag the curve shape the same way we can a crossfade?