I have been in search of arrows that are heavier and found the Gold Tip laser IV arrows. I understand that they are the same shaft as the Kinetic shaft but I am unsure for fact. I purchased 22" shafts, 60 grain brass inserts, aluminum moon nocks and Vanetec 4" vanes for a total weight of 548 grains. The shafts are typical Gold Tip high quality as well as the components that go in them. For me the logo paint is not my thing on the shaft so I'm sure I will take it off with acetone, it is raised just a little and will wear off after a bit anyways. I weighed the shafts and had zero deviation in weight, from 305.8 grains to 306 grains, I wont worry about .2 grains for what I do. The aluminum moon nocks are crisp,clean,indexable and rugged as all get out at 21 grains to 20.9 grains, one tenth of a grain out of a dozen wasn't bad at all. The brass inserts were spot on at 60 grains and very well machined, they had flawless threads and weight. The finished arrows are just what I expected, heavy and stiff. I have about a 21% FOC using 125 grain field points. How they fly, well that is all about the bow and arrow combo used. Out of my predator they fly very well and very stable (347fps) as I was shooting in a 10mph crosswind today. Tried them in my Crosman teton and they flew well but slow at 264fps. My Excal phoenix was a speed disaster at 224fps but repeated very well even with the not recommended moon nocks for Excal.
I was amazed with how hard the laser IV's hit the target out of the predator. At 147 foot lbs KE I think you would be hard pressed not to get great penetration on just about any animal. If using these arrows I would recommend buying a spider web target as I had to back my targets up with another target behind them to keep the fletching out of the target.
They spin well in the hand and seem well balanced and I didn't face the shafts either before inserting the inserts. Weight tolerance was better than listed, I bet one could compete with this shaft if need be.
They are good quality arrows at a fair price (soon to be had here at the nation store I'm sure). I think there best selling point is out rite durability and hard hitting. I would buy them again if I need a heavy arrow and have no real complaints with them.
I included some pics just because I could. The arrows are at 40 yards with a 10mph crosswind, not bad for me but terrable for some.