I can not remember where I learned this tip, but made a huge difference for me years ago, maybe someone on here at an event.
First I start with what point weight I want, then get my bareshafts all set up. Wood I pay attention to the Riff when making them of course.
Next, I take the fletching I am going to use, and weigh them on grain scale.
then, I take electrical tape, and cut off enough to weigh same as fletching. I wrap the back of shaft where the fletching will be with it.
Now, I will stand at 7-10 yards and shoot the "bareshaft" into a firm target, at least 3 times.
then I will cut down, and repeat, until I get the shaft laser straight.
Then I will back up to 15 yards, and repeat it, keep in mind any adjustment needs only be like 1/16th.
then I will back up to 20 yards, for me this is where I stop for wood. I know many will push out further, but am limited in range.
If using carbons, I will then "nock tune" them, as they have a seem, I shoot each shaft.
Then fletchem.