I used the same method and can confirm it was very effective for me as well. An added bonus is reduced stress about time limits. After the first pass you have

I used the same method and can confirm it was very effective for me as well. An added bonus is reduced stress about time limits. After the first pass you have a big chunk (if not most) of the test done in little time - this feels good and also leaves you with a clearer idea of how much work and time is left.