I'm still unsure as to how to assess Murphy's speed. The one thing I have noticed is that he seems to be easily knocked off balance, which leads to a protracted stumble and eventual fall. This is in contrast to March, whose balance for me looks great, and looks especially threatening when in...
I grant you he does both (rather than just the latter, which you claim), but running into them can sometimes have positive effects too, as Acker79 indicates.