4 smythes gives Crosby a pretty strong hold on #5. Whether you want to call it "big 5" or just " stand-alone 5" is semantics, though i do get and mostly agree with what you say. 4 smythes - with the next 2 being good ones but not fantastic ones - aren't enough to touch the big 4. 4 smythes with at least one of them being a fantastic one (ie better than Malkin 2009)? Not saying that is definitely enough to break into the big 4 - but let's at least take the time to look at it more closely, as it would be hugely significant.