Your medical collections may fall off sooner than you think. I had two medicals from the same collection agency and they both dropped off a few months before 7 years. I'd let the FU reach a full year old. Although I haven't done a state-by-state survey, it's my experience that Chase relies most heavily on EX. Get rid of the baddies, improve the EX, keep up the good payment record. You'll get your CSP.