First shot with CZ 24mm
I've had my best luck removing CA manually with the eyedropper tool in LR4's "Lens Corrections" tool section (under the "Color" sub-heading).
I'm not sure what else to recommend, since one usually composes a frame and shoots wide open for pretty specific reasons. (You could try stopping down just a little bit - f/2 won't change the depth too much but it does seem to tidy up many things - particularly in the corners. Though I often find a certain amount of CA there even at f/8...)
Or maybe try the Leica Summilux 24/1.4 - that seems to have a lot less CA and is quite reasonably priced at $7000.