Jerry,
I grind off the red which creates the shape. (I got these a touch too hot on the tip while grinding but I think they will be ok) I use the JB weld between the 2 blades where they overlap. (Will probably drill a hole and pin later) Cut the barrel which is a wood arrow adapter from 3 rivers. Called Top Hat I think. Glue in the screw in insert. You could just use on wood arrows without the insert. Would be 150 grains. These come out 180-185. I use a hack saw to cut down thru the adapter then sand paper the inside a bit to create the right gap. Grind a bit off the tip/sides of the adapter to thin it. Then squeeze/pound it after its all together before weld. Everything fits tightly. Careful when putting together, gloves help
I have made enough now they are going in my quiver. Anxious to see how they work on a deer. They fly great.