These are now the only arrows I buy. I really didn't think they were too much more expensive than the other brands and I bought the 350 I think, I would have to go home and look. Got the tightest straightness tolerances. My groups were great! I don't have the new inserts but I have the other ones which I believe were 43 gr. The worst part about these arrows is I had to buy a newer very expensive target because they would go through everything and after about 3 shots, the fletchings would start tearing off. Outstanding penetration and it sure does make a lot of sense. Very small diameter also had to modify my quiver because they would start sliding out a little. Try some, I think you will be impressed!
Ryan