i have just recived a test kit my friend brought me man they are a big shaft. i tried bare shafting and i nearly shot my girl friends cat haha i don't like cats anyway but you never get the cook angry.
anyway they don't bare shaft very well so i fletched them up and the hammerhead lite shoots like a dart which supprised me as i use 70-75# cedars out of this bow the hammergead shoot nock right big time even with 300 grains up front.
love these shafts though pitty they don't get sold in australia in the shops