It is something you have to watch though--over the last four months that I've been under consideration for the position in Vancouver, the overall required score has dropped by three and my personal score (without secured employment) has gone from 72 to 69, without anything actually changing on my end. So they're continually reevaluating the importance of various factors, as well as what they're looking for. Scoring above the minimum without guaranteed employment only means you qualify for an interview with immigration, iirc. :(