I am taking survey on Friday in two days, so I have tonight and tomorrow nights to study. I did CPESR CBT practice tests once. Scored 63-70%. I am half-way into "120 solved surveying problems book". Would you suggest I finish the rest of the 60/120 problems in these two nights or retake one or two of the CPESR CBT tests (easy, medium, medium, difficult)? 
