My shoot away pheasant arrows are cheap or old cedars, I go out to the country shooting range. The sign says "PICK UP ALL SPENT ROUNDS" , nobody but us guys do it. I take a square cut piece of cedar shaft, either 11/32 or 23/64 and look for the longer casings that fit tight. Then drill out the cap, get a 9/32 bolt and the appropriate wing nut, stick it the hole, screw the wing nut down tight. You can adjust the weight by getting the bolt long enough to add a nut or washers then topping it with the wing nut. I am cheap, I pack a couple of split shot in mine and put a bit of hot melt in to keep it in place, then hot melt it to a square cut cedar arrow. I sharpen the wing nuts on my grinder a bit. They killed pheasants really nice. I do not use flu-flus, I make my arrows as cheap as possible, because I am very likely to lose them with the first shot. I don't feel all that bad about the lost cedars, it is not like they are going still be there many years down the road like aluminum or carbons arrows. if in doubt about what spine to get the cedars, you can get by with them a bit stiff, they will still fly on line and remember with cheap cedars put the flares on top and forward.