Private practices are already starting to look for 2017 graduates in a number of scientific fields.  If you're looking to secure a Trainee Patent Attorney role next year, then it makes sense to get a head start on your competition.   

If your degree or PhD includes electronics, software, mechanical engineering or physics related subject matter, then the sooner you start the better.  

Using a dedicated IP recruiter can also save you time and effort whilst you concentrate on your finals...