I have tried the BEE's in .003 straightness along with Deer Crossing arrows with the same straightness rating. Both brands factory fletched. Either shoot better than I can at hunting distance - 45/50 yards. To my thinking, this is all I need. You can get spine indexed and custom fletched BEE's from Jerry at South Shore archery. I understand that they are great, and if I was shooting for money I would likely go that route. For the average guy like myself, I would just buy the non indexed arrows and take the chance that one or two mya not shoot quite as well as the rest. You can always try turning a different vane down to see if that helps an arrow group more with the rest.