Instead of the time btw the Q and V sections, you can also think about using the time before starting the test and the remaining time, if any, during the essay sections. This way, you can use the time before V to take a quick bite and focus on the next section.
I used grid like the one below. Same can be used for both Math and Verbal sections. And importantly, it is quick and easy to sketch out the grid anytime you need it.