I used to do the opposite, start from the back where the bigger/harder questions where when I was still fresh, and work backwards(?) to the easier questions with fewer points. Agree that leaving a question half finished with enough space to come back to it and finish it is also a good idea, instead of getting stuck and demoralised.
In any case, I think it's fair to say that reading all of the test, thinking about how you want to approach it, and not just blindly following the ordering provided is going to be better than a naive approach - no matter what ordering is chosen.
