I usually shoot a couple at 10 yards to verify that I'm close in spine. Be sure to make as accurate a guess as to what spine you'll need as a starting point. If you are way off, you'll likely break a wood shaft when it hit the target sideways.
Then I move back to 15-17 yards and shoot a dozen shots. Personally, I just use two arrows, one fletched and one bare. Six shots of each gives me something to work with. I try to make sure each shot is a good one, meaning that, if I pluck the string or make some other obvious error, I discount that shot and shoot another.
I then make adjustments and reshoot at the same distance to verify the changes were correct. At that point, I typically just put on broadheads and fine-tune from there. With my broadheads, I'll move on back to 30, maybe even 40 yards.
One thing to remember is that you need to be shooting in absolute calm conditions. Wind will really mess with your tuning.
With your setup, you'll probably need somewhere around a 40-45 spine.