my personal note on this:
i am trying to squeeze as much difficult out of minimal density, and the way i see it, densifiying the "mini-jacks" to jumpjacks would hardly increase difficulty.
being able to shift the single note in a 2-1 pattern also allows more variation.
unless someone else hardly disagrees on this, i am going to keep this pattern untouched.
marking this and all related mods as resolved.