With an area that has seen little hunting pressure, you can have more flexibility. But all the time you spend tromping around will have some sort of impact.
Essentially, you are hunting these birds based on their pattern of movement. That is good tactic if you have a good bead on where and when they move.
But to answer your question, confirming roost sites is good scouting practice. But the best time to do it is well away from fly down or fly up time.
And by the way, my first turkey season was spent with a bow. Shortly after the end of that season, I was the proud new owner of a Mossberg 500. Now, my first tag is for Mossy, the second tag is for Hoyt.