LOA 6 S.H. 3 Ex 1.3

In 5th measure (4 chord) 2 blow followed by draw 2,1 (pull).  I find myself doing a 2/1 blow  when preceeded by a blow note.  Same if it is a 2/1 draw I would tend to follow with a draw pull.  Should I slow down, concentrate and play it as written or is it OK to play what seems to flow easier for me which is to match blow pulls with preceeding blow notes, draw pulls with preceeding draw notes.  Hope this makes sense