Heck!!! If your bow is launching arrow straight, you don't need fletching out to ten yards or better.
Shoot a non fletched arrow and see, if it launches sideways you got a problem
Kitchen Sink Tuning.....
This is what I would do too
If your bow is tuned right or close. A fletched and none fletched arrow should hit identicle to each other just like broadhead tuning. Do it from a couple feet away at first then walk back a little at a time.