One of the things that the Friday the 13th series never really took pride in was continuity. How can it be Friday the 13th if parts 2, 3, and 4 are within three or four days? But I don't think that Monday the 16th has quite the same ring to it.
People have actually sent me Jason-timelines and show me categorically where we're wrong with things, and where the writers of part six was wrong, or the writer of part three was wrong, and you know what? So what.