I've never seen MK do a split jump and for that matter many other skaters, too. Split jumps were de rigeur back in time.
Anyhow there is a quarter page photo of Mk in and advert on page 65 of the IFS magazine, for the Figure Skating Calendar 2005. I am not sure if it is a of a split jump or of the falling leaves that she definitely does in every competition.
It is a remarkably perfrect split. The forward leg has the toe pointing upward while the back leg has the toe pointing towards the side. The body is facing forwards. This is the position one learns in acrobatic class when stretching those legs into splits on the floor.
The other split jump (the 'Russian' split jump) comes from, I believe, the Ukrainian 'Hopak', a very lively and rousing folk dance. Here both toes are pointing upward but the 'fanny' is pushed backwards, and the body faces sideways to allow for this maneuver.
The former split jump is the same as a grand jete in ballet; the Russian split jump is the same as seen in folk dancing.
My point is that if this photo of MK is a classifcal split jump and not a falling leave, then I insist it go into all future programs. And I would like to see other skaters perform it as well. It can be an exciting move with the right music.