However, if M323GKY was a badly taught course by an unmotivated professor who hates teaching [the exact opposite to David Ullrich, BTW, who, judging from his expositional skills and his maths work on sci.math is someone who is very committed to undergrad teaching], then filtering the students by their having passed M323GKY does not work well.I am puzzled though by the word now as in now highly qu