Update and question: A slight bit of bow tuning and working on my shooting form, I'm getting better flight. I matched up 2 sets of 3 arrows each. All shafts 29" BOP, 145 g tip,RW feathers and within 6g of total arrow mass weight. Set 1 has high profile big 5 1/2" banana fletchings and I spined them at 53/54#, set 2 has 5 inch low profile shield feathers spines 52/53#. Here's the perplexing thing: set 1 flies try and like darts, set 2 is tail wag right hits left slightly, and I think smacking off the side of the riser when I release. I would think maybe they are flying stiff but the shafts are actually weaker. Or am I getting false stiff because they are hitting the riser?