Wirelessly posted (BlackBerry9630/5.0.0.591 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/105)
CX is pretty good with inventory and the rates for F are pretty good. If you want *A redemption still AC still has some decent rates - and routing rules - that UACO cannot match, though there are obviously some that are not nearly so good.
Point remains that there are still a bunch of other MR options and the points are more valuable in MR before you commit them to a carrier. So no rush to move everything because the option is closing.