Maybe you should look at what 280 said, if it does not shoot right, retune. I gave him info to retune. The man understands and is not stupid. He knows each head is not the same.
Want to bet he will see some truth in it? He did not say I am wrong so I depend on ethics. Hard to find anymore. Might make him better while he uses what I said. Just like gun writers use what I taught them here. Nobody has ever shot more under 1" groups at 100 yards with out of box revolvers as I have. It is loading just like tuning arrows.
Sorry Greg, come here and I will change heads on your arrows to see a huge laugh when you try to hit anything.
I also see that 280 admits the wrong spine will not work. Very strange.