At the Archery Buyers Association I saw a device that may be useful to those who shoot Al and C shafts. it weights 25 grains and screws into your exitsing insert-adds about 1/2 inch-then you put in your broadhead. They'll cost about $2 each, but it is an easy way to weight up the front. It just might be what you need to get that broadhead flying right by season! I'll get the brochure and give you the name so you can bang your dealer for some if interessted.