I have a horrible time trying to get any weight out of my cane arrows. I want to do them all primitive, no metal. Finished out with points I'm barely getting 500 grains. They are 29-30" long, the ends are filled. I either fill with skewers of split cane or sand. either way the weight gain is only about 25-40 grains. And that is cutting just behind the node so i get as much "arrow" to stuff full as possible. I have no problem getting 600 grain bareshafts out of my sparkleberry or privet arrows.... but i just cant get weight from cane at all. Yeah I know I could stuff a nail down in the ends or add any kind of metal weight, but I don't want any metal in there. They are all stone pointed arrows and yeah, no one will be able to see the nails....but I will know they are in there.. Ideally I want 600 grains out of them (roughly) but id be happy with 550. Im barely getting 480- low 500's. I've used river cane from Alabama and Florida both, with no difference between the two. I lose about 25gr by barrel tapering the ends of my shafts, but I feel this is 100% necessary when shooting stone. any ideas? or just going to have to suck it up and shoot 450-500's? I've killed deer with stone pointed cane arrows with less weight before, But I sure wouldn't mind getting the extra umph outa them.