Answer 1

I'm an idiot, the easy version of this is just adding an extra space after.  Much easier to hit and still get just as much boost.

Answer 2

So how this works is it's just a zetta jump, combined with a wall climb (at the same time).  If you were to do the full jump then hit the wall and climb, it'd be functionally the same height (but look less neat)

http://snag.gy/BiDuS.jpg is basically the exact same level.