Hi kktrehan,
There's a big difference between dealing with sets of CR questions and handling a FULL-LENGTH CAT. From what you've described, your performance is inconsistent, but it's not clear what your ACTUAL ability level is.
Have you taken any FULL CATs recently (including the Essay and IR sections)? If so, then what were your scores?
Until we have some data to work with, it's not clear if CR is actually your biggest 'problem area' or not.
GMAT assassins aren't born, they're made,
Rich